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51655308093312 = 27372112191118787
BaseRepresentation
bin10111011111010111100000…
…10010100010011110000000
320202220012101020100222212120
423233223300102202132000
523232310032332441222
6301510042042324240
713610654455153500
oct1357536022423600
9222805336328776
1051655308093312
1115505990849700
12596318a1b9680
1322a90c801a141
14ca81b75a5a00
155e8a16aec15c
hex2efaf04a2780

51655308093312 has 576 divisors, whose sum is σ = 176360153195520. Its totient is φ = 13346604902400.

The previous prime is 51655308093307. The next prime is 51655308093329. The reversal of 51655308093312 is 21339080355615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 434797183 + ... + 434915969.

It is an arithmetic number, because the mean of its divisors is an integer number (306180821520).

Almost surely, 251655308093312 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 51655308093312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88180076597760).

51655308093312 is an abundant number, since it is smaller than the sum of its proper divisors (124704845102208).

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

51655308093312 is a wasteful number, since it uses less digits than its factorization.

51655308093312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119031 (or 119001 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 51.

The spelling of 51655308093312 in words is "fifty-one trillion, six hundred fifty-five billion, three hundred eight million, ninety-three thousand, three hundred twelve".