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142427976 = 23333117929
BaseRepresentation
bin10000111110101…
…00011101001000
3100221000002110020
420133110131020
5242430143401
622044420440
73346421625
oct1037243510
9327002406
10142427976
1173440279
123b847720
132367a512
1414cb734c
15c785d36
hex87d4748

142427976 has 32 divisors (see below), whose sum is σ = 357165600. Its totient is φ = 47329920.

The previous prime is 142427963. The next prime is 142427977. The reversal of 142427976 is 679724241.

It is not an unprimeable number, because it can be changed into a prime (142427977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021 + ... + 16908.

It is an arithmetic number, because the mean of its divisors is an integer number (11161425).

Almost surely, 2142427976 is an apocalyptic number.

It is an amenable number.

142427976 is an abundant number, since it is smaller than the sum of its proper divisors (214737624).

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

142427976 is a wasteful number, since it uses less digits than its factorization.

142427976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18269 (or 18265 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 142427976 is about 11934.3192516373. The cubic root of 142427976 is about 522.2339492429.

The spelling of 142427976 in words is "one hundred forty-two million, four hundred twenty-seven thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 24 331 662 993 1324 1986 2648 3972 7944 17929 35858 53787 71716 107574 143432 215148 430296 5934499 11868998 17803497 23737996 35606994 47475992 71213988 142427976