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207855525472 = 25717591994649
BaseRepresentation
bin1100000110010100100…
…1111001111001100000
3201212111210211201121021
43001211021321321200
511401142003303342
6235253145135224
721005565546430
oct3014511717140
9655453751537
10207855525472
1180173030811
123434a48a514
13167a69493ba
14a0bb4dc2c0
155617e32567
hex3065279e60

207855525472 has 192 divisors, whose sum is σ = 506217600000. Its totient is φ = 81988042752.

The previous prime is 207855525461. The next prime is 207855525539. The reversal of 207855525472 is 274525558702.

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 31 ways as a sum of consecutive naturals, for example, 44707404 + ... + 44712052.

It is an arithmetic number, because the mean of its divisors is an integer number (2636550000).

Almost surely, 2207855525472 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 207855525472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253108800000).

207855525472 is an abundant number, since it is smaller than the sum of its proper divisors (298362074528).

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

207855525472 is a wasteful number, since it uses less digits than its factorization.

207855525472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4941 (or 4933 counting only the distinct ones).

The product of its (nonzero) digits is 7840000, while the sum is 52.

The spelling of 207855525472 in words is "two hundred seven billion, eight hundred fifty-five million, five hundred twenty-five thousand, four hundred seventy-two".