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142331476 = 2272726181
BaseRepresentation
bin10000111101111…
…00111001010100
3100220211012002011
420132330321110
5242414101401
622042354004
73345540400
oct1036747124
9326735064
10142331476
1173384821
123b7bb904
1323645611
1414c90100
15c767451
hex87bce54

142331476 has 18 divisors (see below), whose sum is σ = 289746618. Its totient is φ = 60999120.

The previous prime is 142331473. The next prime is 142331513. The reversal of 142331476 is 674133241.

It can be written as a sum of positive squares in only one way, i.e., 136328976 + 6002500 = 11676^2 + 2450^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142331473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 362895 + ... + 363286.

Almost surely, 2142331476 is an apocalyptic number.

It is an amenable number.

142331476 is an abundant number, since it is smaller than the sum of its proper divisors (147415142).

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

142331476 is a wasteful number, since it uses less digits than its factorization.

142331476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726199 (or 726190 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 142331476 is about 11930.2756045282. The cubic root of 142331476 is about 522.1159785946.

The spelling of 142331476 in words is "one hundred forty-two million, three hundred thirty-one thousand, four hundred seventy-six".

Divisors: 1 2 4 7 14 28 49 98 196 726181 1452362 2904724 5083267 10166534 20333068 35582869 71165738 142331476