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142557925 = 5217873191
BaseRepresentation
bin10000111111101…
…00001011100101
3100221020200201011
420133310023211
5242443323200
622051302221
73350502526
oct1037641345
9327220634
10142557925
1173519974
123b8aa971
13236c4703
1414d0c84d
15c7ae5ba
hex87f42e5

142557925 has 12 divisors (see below), whose sum is σ = 176926176. Its totient is φ = 113946800.

The previous prime is 142557913. The next prime is 142557959. The reversal of 142557925 is 529755241.

It is a happy number.

It is not a de Polignac number, because 142557925 - 211 = 142555877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43080 + ... + 46270.

It is an arithmetic number, because the mean of its divisors is an integer number (14743848).

Almost surely, 2142557925 is an apocalyptic number.

It is an amenable number.

142557925 is a deficient number, since it is larger than the sum of its proper divisors (34368251).

142557925 is a wasteful number, since it uses less digits than its factorization.

142557925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988 (or 4983 counting only the distinct ones).

The product of its digits is 126000, while the sum is 40.

The square root of 142557925 is about 11939.7623510688. The cubic root of 142557925 is about 522.3927269226.

The spelling of 142557925 in words is "one hundred forty-two million, five hundred fifty-seven thousand, nine hundred twenty-five".

Divisors: 1 5 25 1787 3191 8935 15955 44675 79775 5702317 28511585 142557925