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2157074841600 = 2173752743
BaseRepresentation
bin11111011000111011101…
…011100000000000000000
321122012210020212120000000
4133120323223200000000
5240320142124412400
64330540240000000
7311562216425460
oct37307353400000
97565706776000
102157074841600
117618a0571168
122aa080000000
13128546791c23
147658dabdba0
153b19cc5b600
hex1f63bae0000

2157074841600 has 1728 divisors, whose sum is σ = 9382454484480. Its totient is φ = 481579499520.

The previous prime is 2157074841583. The next prime is 2157074841653. The reversal of 2157074841600 is 61484707512.

2157074841600 is a `hidden beast` number, since 2 + 1 + 5 + 7 + 0 + 7 + 484 + 160 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 50164531179 + ... + 50164531221.

It is an arithmetic number, because the mean of its divisors is an integer number (5429661160).

Almost surely, 22157074841600 is an apocalyptic number.

2157074841600 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 2157074841600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4691227242240).

2157074841600 is an abundant number, since it is smaller than the sum of its proper divisors (7225379642880).

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

2157074841600 is an frugal number, since it uses more digits than its factorization.

2157074841600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 2157074841600 in words is "two trillion, one hundred fifty-seven billion, seventy-four million, eight hundred forty-one thousand, six hundred".