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125540923 = 1923287279
BaseRepresentation
bin1110111101110…
…01101000111011
322202020010202211
413132321220323
5224114302143
620242435551
73053036344
oct736715073
9282203684
10125540923
1164956832
1236062bb7
1320016c91
141295d0cb
15b04c49d
hex77b9a3b

125540923 has 8 divisors (see below), whose sum is σ = 137894400. Its totient is φ = 113762088.

The previous prime is 125540881. The next prime is 125540927. The reversal of 125540923 is 329045521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-125540923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125540927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143203 + ... + 144076.

It is an arithmetic number, because the mean of its divisors is an integer number (17236800).

Almost surely, 2125540923 is an apocalyptic number.

125540923 is a deficient number, since it is larger than the sum of its proper divisors (12353477).

125540923 is a wasteful number, since it uses less digits than its factorization.

125540923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287321.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 125540923 is about 11204.5045852104. The cubic root of 125540923 is about 500.7201928132.

The spelling of 125540923 in words is "one hundred twenty-five million, five hundred forty thousand, nine hundred twenty-three".

Divisors: 1 19 23 437 287279 5458301 6607417 125540923