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142580992 = 28556957
BaseRepresentation
bin10000111111110…
…01110100000000
3100221021212100111
420133321310000
5243000042432
622052001104
73350630011
oct1037716400
9327255314
10142580992
1173535234
123b900194
1323702068
1414d17008
15c7b6347
hex87f9d00

142580992 has 18 divisors (see below), whose sum is σ = 284605538. Its totient is φ = 71290368.

The previous prime is 142580983. The next prime is 142581011. The reversal of 142580992 is 299085241.

It can be written as a sum of positive squares in only one way, i.e., 142468096 + 112896 = 11936^2 + 336^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 278223 + ... + 278734.

Almost surely, 2142580992 is an apocalyptic number.

It is an amenable number.

142580992 is a deficient number, since it is larger than the sum of its proper divisors (142024546).

142580992 is an frugal number, since it uses more digits than its factorization.

142580992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556973 (or 556959 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 142580992 is about 11940.7282859966. The cubic root of 142580992 is about 522.4209011616.

The spelling of 142580992 in words is "one hundred forty-two million, five hundred eighty thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 32 64 128 256 556957 1113914 2227828 4455656 8911312 17822624 35645248 71290496 142580992