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149792542 = 21719231877
BaseRepresentation
bin10001110110110…
…10011100011110
3101102212020201221
420323122130132
5301321330132
622510323554
73466133644
oct1073323436
9342766657
10149792542
1177610399
12421b95ba
1325058653
1415c73194
15d23ce97
hex8eda71e

149792542 has 16 divisors (see below), whose sum is σ = 250428240. Its totient is φ = 66780288.

The previous prime is 149792519. The next prime is 149792551. The reversal of 149792542 is 245297941.

It is a congruent number.

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, 115293 + ... + 116584.

It is an arithmetic number, because the mean of its divisors is an integer number (15651765).

Almost surely, 2149792542 is an apocalyptic number.

149792542 is a deficient number, since it is larger than the sum of its proper divisors (100635698).

149792542 is a wasteful number, since it uses less digits than its factorization.

149792542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231915.

The product of its digits is 181440, while the sum is 43.

The square root of 149792542 is about 12238.9763460839. The cubic root of 149792542 is about 531.0842193311.

The spelling of 149792542 in words is "one hundred forty-nine million, seven hundred ninety-two thousand, five hundred forty-two".

Divisors: 1 2 17 19 34 38 323 646 231877 463754 3941909 4405663 7883818 8811326 74896271 149792542