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3811680768 = 2937461769
BaseRepresentation
bin1110001100110001…
…1010001000000000
3100211122100110000210
43203030122020000
530301242241033
61430121314120
7163312515630
oct34314321000
910748313023
103811680768
11168665a1a5
128a4635940
134898c700c
142823326c0
15174976d63
hexe331a200

3811680768 has 160 divisors (see below), whose sum is σ = 11645504640. Its totient is φ = 1085276160.

The previous prime is 3811680751. The next prime is 3811680809. The reversal of 3811680768 is 8670861183.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4956288 + ... + 4957056.

It is an arithmetic number, because the mean of its divisors is an integer number (72784404).

Almost surely, 23811680768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3811680768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5822752320).

3811680768 is an abundant number, since it is smaller than the sum of its proper divisors (7833823872).

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

3811680768 is an equidigital number, since it uses as much as digits as its factorization.

3811680768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 3811680768 is about 61738.8108729023. The cubic root of 3811680768 is about 1562.0880389182.

The spelling of 3811680768 in words is "three billion, eight hundred eleven million, six hundred eighty thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 336 384 448 461 512 672 768 769 896 922 1344 1383 1536 1538 1792 1844 2307 2688 2766 3076 3227 3584 3688 4614 5376 5383 5532 6152 6454 7376 9228 9681 10752 10766 11064 12304 12908 14752 16149 18456 19362 21532 22128 24608 25816 29504 32298 36912 38724 43064 44256 49216 51632 59008 64596 73824 77448 86128 88512 98432 103264 118016 129192 147648 154896 172256 177024 196864 206528 236032 258384 295296 309792 344512 354048 354509 393728 413056 516768 590592 619584 689024 708096 709018 826112 1033536 1063527 1181184 1239168 1378048 1418036 1652224 2067072 2127054 2478336 2481563 2756096 2836072 4134144 4254108 4956672 4963126 5672144 7444689 8268288 8508216 9926252 11344288 14889378 17016432 19852504 22688576 29778756 34032864 39705008 45377152 59557512 68065728 79410016 90754304 119115024 136131456 158820032 181508608 238230048 272262912 317640064 476460096 544525824 635280128 952920192 1270560256 1905840384 3811680768