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142894572 = 22353224677
BaseRepresentation
bin10001000010001…
…10010111101100
3100221212210111120
420201012113230
5243040111242
622102420540
73353404152
oct1041062754
9327783446
10142894572
1173729897
123ba31750
13237b1a02
1414d993d2
15c8291ec
hex88465ec

142894572 has 24 divisors (see below), whose sum is σ = 339713136. Its totient is φ = 46732608.

The previous prime is 142894567. The next prime is 142894603. The reversal of 142894572 is 275498241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111703 + ... + 112974.

It is an arithmetic number, because the mean of its divisors is an integer number (14154714).

Almost surely, 2142894572 is an apocalyptic number.

142894572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142894572 is an abundant number, since it is smaller than the sum of its proper divisors (196818564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142894572 is a wasteful number, since it uses less digits than its factorization.

142894572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224737 (or 224735 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 142894572 is about 11953.8517641804. The cubic root of 142894572 is about 522.8036094801.

The spelling of 142894572 in words is "one hundred forty-two million, eight hundred ninety-four thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 224677 449354 674031 898708 1348062 2696124 11907881 23815762 35723643 47631524 71447286 142894572