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190725572089 = 1321128553681
BaseRepresentation
bin1011000110100000100…
…0010100010111111001
3200020021222210221011101
42301220020110113321
511111101221301324
6223341302531401
716531233420403
oct2615010242771
9606258727141
10190725572089
1173982682248
1230b69736b61
1314ca6a55800
149334471b73
154e6413a944
hex2c682145f9

190725572089 has 6 divisors (see below), whose sum is σ = 206525323806. Its totient is φ = 176054374080.

The previous prime is 190725572069. The next prime is 190725572131. The reversal of 190725572089 is 980275527091.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1691923689 + 189033648400 = 41133^2 + 434780^2 .

It is not a de Polignac number, because 190725572089 - 27 = 190725571961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190725572029) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 564276672 + ... + 564277009.

It is an arithmetic number, because the mean of its divisors is an integer number (34420887301).

Almost surely, 2190725572089 is an apocalyptic number.

It is an amenable number.

190725572089 is a deficient number, since it is larger than the sum of its proper divisors (15799751717).

190725572089 is a wasteful number, since it uses less digits than its factorization.

190725572089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128553707 (or 1128553694 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 55.

The spelling of 190725572089 in words is "one hundred ninety billion, seven hundred twenty-five million, five hundred seventy-two thousand, eighty-nine".

Divisors: 1 13 169 1128553681 14671197853 190725572089