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252157132800 = 2153252231487
BaseRepresentation
bin1110101011010110111…
…1001000000000000000
3220002212021010120000200
43222311233020000000
513112404211222200
6311501150245200
724134455156446
oct3526557100000
9802767116020
10252157132800
1197a37145031
1240a52ab6800
131aa16c61931
14c2c10d0b96
15685c3b9800
hex3ab5bc8000

252157132800 has 576 divisors, whose sum is σ = 943175525760. Its totient is φ = 64275087360.

The previous prime is 252157132793. The next prime is 252157132807. The reversal of 252157132800 is 8231751252.

252157132800 is a `hidden beast` number, since 2 + 5 + 2 + 1 + 571 + 3 + 2 + 80 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (252157132793) and next prime (252157132807).

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252157132807) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 169573657 + ... + 169575143.

It is an arithmetic number, because the mean of its divisors is an integer number (1637457510).

Almost surely, 2252157132800 is an apocalyptic number.

252157132800 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 252157132800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471587762880).

252157132800 is an abundant number, since it is smaller than the sum of its proper divisors (691018392960).

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

252157132800 is a wasteful number, since it uses less digits than its factorization.

252157132800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556 (or 1520 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 252157132800 in words is "two hundred fifty-two billion, one hundred fifty-seven million, one hundred thirty-two thousand, eight hundred".