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189125925 = 3526167617
BaseRepresentation
bin10110100010111…
…01010100100101
3111011212120222220
423101131110211
5341404012200
630433342553
74454354352
oct1321352445
9434776886
10189125925
119783611a
1253407a59
133024a941
141b191629
151190c4a0
hexb45d525

189125925 has 48 divisors (see below), whose sum is σ = 323080512. Its totient is φ = 97574400.

The previous prime is 189125917. The next prime is 189125929. The reversal of 189125925 is 529521981.

189125925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189125925 - 23 = 189125917 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189125929) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 306217 + ... + 306833.

It is an arithmetic number, because the mean of its divisors is an integer number (6730844).

Almost surely, 2189125925 is an apocalyptic number.

189125925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189125925 is a deficient number, since it is larger than the sum of its proper divisors (133954587).

189125925 is a wasteful number, since it uses less digits than its factorization.

189125925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 753 counting only the distinct ones).

The product of its digits is 64800, while the sum is 42.

The square root of 189125925 is about 13752.3061702392. The cubic root of 189125925 is about 574.0067793717.

The spelling of 189125925 in words is "one hundred eighty-nine million, one hundred twenty-five thousand, nine hundred twenty-five".

Divisors: 1 3 5 15 25 61 67 75 183 201 305 335 617 915 1005 1525 1675 1851 3085 4087 4575 5025 9255 12261 15425 20435 37637 41339 46275 61305 102175 112911 124017 188185 206695 306525 564555 620085 940925 1033475 2521679 2822775 3100425 7565037 12608395 37825185 63041975 189125925