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158380242 = 2397272131
BaseRepresentation
bin10010111000010…
…11000011010010
3102001000112211220
421130023003102
5311021131432
623414345510
73632131656
oct1134130322
9361015756
10158380242
1181446469
124505b296
1326a74427
141706aa66
15dd8772c
hex970b0d2

158380242 has 16 divisors (see below), whose sum is σ = 320027232. Its totient is φ = 52248960.

The previous prime is 158380241. The next prime is 158380273. The reversal of 158380242 is 242083851.

It is not an unprimeable number, because it can be changed into a prime (158380241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135484 + ... + 136647.

It is an arithmetic number, because the mean of its divisors is an integer number (20001702).

Almost surely, 2158380242 is an apocalyptic number.

158380242 is an abundant number, since it is smaller than the sum of its proper divisors (161646990).

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

158380242 is a wasteful number, since it uses less digits than its factorization.

158380242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272233.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 158380242 is about 12584.9212154864. The cubic root of 158380242 is about 541.0453481917.

The spelling of 158380242 in words is "one hundred fifty-eight million, three hundred eighty thousand, two hundred forty-two".

Divisors: 1 2 3 6 97 194 291 582 272131 544262 816393 1632786 26396707 52793414 79190121 158380242