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190765925 = 5271764123
BaseRepresentation
bin10110101111011…
…01101101100101
3111021221220122122
423113231231211
5342314002200
630532435325
74504324610
oct1327555545
9437856578
10190765925
1198756299
1253a78b45
13306a325c
141b49b177
1511b33385
hexb5edb65

190765925 has 24 divisors (see below), whose sum is σ = 286249536. Its totient is φ = 123114240.

The previous prime is 190765901. The next prime is 190765987. The reversal of 190765925 is 529567091.

It is a happy number.

It is not a de Polignac number, because 190765925 - 210 = 190764901 is a prime.

It is a super-2 number, since 2×1907659252 = 72783276282211250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29087 + ... + 35036.

It is an arithmetic number, because the mean of its divisors is an integer number (11927064).

Almost surely, 2190765925 is an apocalyptic number.

It is an amenable number.

190765925 is a deficient number, since it is larger than the sum of its proper divisors (95483611).

190765925 is a wasteful number, since it uses less digits than its factorization.

190765925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64157 (or 64152 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 44.

The square root of 190765925 is about 13811.8038286098. The cubic root of 190765925 is about 575.6611676269.

The spelling of 190765925 in words is "one hundred ninety million, seven hundred sixty-five thousand, nine hundred twenty-five".

Divisors: 1 5 7 17 25 35 85 119 175 425 595 2975 64123 320615 448861 1090091 1603075 2244305 5450455 7630637 11221525 27252275 38153185 190765925