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12841415520 = 2535137195277
BaseRepresentation
bin10111111010110100…
…00111001101100000
31020010221101111110020
423331122013031200
5202244400244040
65522124033440
7633136142133
oct137532071540
936127344406
1012841415520
11549a70a5aa
1225a4692880
13129858862b
1489b68821a
15502578cd0
hex2fd687360

12841415520 has 96 divisors (see below), whose sum is σ = 40745926368. Its totient is φ = 3399364608.

The previous prime is 12841415513. The next prime is 12841415567. The reversal of 12841415520 is 2551414821.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31879 + ... + 163398.

It is an arithmetic number, because the mean of its divisors is an integer number (424436733).

Almost surely, 212841415520 is an apocalyptic number.

12841415520 is a gapful number since it is divisible by the number (10) 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 12841415520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20372963184).

12841415520 is an abundant number, since it is smaller than the sum of its proper divisors (27904510848).

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

12841415520 is a wasteful number, since it uses less digits than its factorization.

12841415520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195432 (or 195424 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The spelling of 12841415520 in words is "twelve billion, eight hundred forty-one million, four hundred fifteen thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 137 160 240 274 411 480 548 685 822 1096 1370 1644 2055 2192 2740 3288 4110 4384 5480 6576 8220 10960 13152 16440 21920 32880 65760 195277 390554 585831 781108 976385 1171662 1562216 1952770 2343324 2929155 3124432 3905540 4686648 5858310 6248864 7811080 9373296 11716620 15622160 18746592 23433240 26752949 31244320 46866480 53505898 80258847 93732960 107011796 133764745 160517694 214023592 267529490 321035388 401294235 428047184 535058980 642070776 802588470 856094368 1070117960 1284141552 1605176940 2140235920 2568283104 3210353880 4280471840 6420707760 12841415520