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2308869171880 = 23517125912912089
BaseRepresentation
bin100001100110010011010…
…100111010101010101000
322011201121001200111021121
4201212103110322222220
5300312031002000010
64524402503145024
7325544634101365
oct41462324725250
98151531614247
102308869171880
118102055011a7
12313583745174
131399579c787b
147da6d8ad46c
15400d41243da
hex2199353aaa8

2308869171880 has 128 divisors (see below), whose sum is σ = 5511811536000. Its totient is φ = 867442728960.

The previous prime is 2308869171857. The next prime is 2308869171883. The reversal of 2308869171880 is 881719688032.

It is not an unprimeable number, because it can be changed into a prime (2308869171883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1105249876 + ... + 1105251964.

It is an arithmetic number, because the mean of its divisors is an integer number (43061027625).

Almost surely, 22308869171880 is an apocalyptic number.

2308869171880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2308869171880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2755905768000).

2308869171880 is an abundant number, since it is smaller than the sum of its proper divisors (3202942364120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2308869171880 is a wasteful number, since it uses less digits than its factorization.

2308869171880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4667 (or 4663 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 61.

The spelling of 2308869171880 in words is "two trillion, three hundred eight billion, eight hundred sixty-nine million, one hundred seventy-one thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 1259 1291 2089 2518 2582 4178 5036 5164 6295 6455 8356 10072 10328 10445 12590 12910 16712 20890 21403 21947 25180 25820 35513 41780 42806 43894 50360 51640 71026 83560 85612 87788 107015 109735 142052 171224 175576 177565 214030 219470 284104 355130 428060 438940 710260 856120 877880 1420520 1625369 2630051 2696899 3250738 5260102 5393798 6501476 8126845 10520204 10787596 13002952 13150255 13484495 16253690 21040408 21575192 26300510 26968990 27631273 32507380 44710867 45847283 52601020 53937980 55262546 65014760 89421734 91694566 105202040 107875960 110525092 138156365 178843468 183389132 221050184 223554335 229236415 276312730 357686936 366778264 447108670 458472830 552625460 894217340 916945660 1105250920 1788434680 1833891320 3395395841 6790791682 13581583364 16976979205 27163166728 33953958410 57721729297 67907916820 115443458594 135815833640 230886917188 288608646485 461773834376 577217292970 1154434585940 2308869171880