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149309486 = 21938310259
BaseRepresentation
bin10001110011001…
…00100000101110
3101101221201002222
420321210200232
5301210400421
622452115342
73462052424
oct1071444056
9341851088
10149309486
1177310477
1242005b52
1324c19811
1415b89114
15d194cab
hex8e6482e

149309486 has 16 divisors (see below), whose sum is σ = 236390400. Its totient is φ = 70534008.

The previous prime is 149309437. The next prime is 149309497. The reversal of 149309486 is 684903941.

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, 9425 + ... + 19683.

It is an arithmetic number, because the mean of its divisors is an integer number (14774400).

Almost surely, 2149309486 is an apocalyptic number.

149309486 is a deficient number, since it is larger than the sum of its proper divisors (87080914).

149309486 is a wasteful number, since it uses less digits than its factorization.

149309486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10663.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 149309486 is about 12219.2260802393. The cubic root of 149309486 is about 530.5127185067.

The spelling of 149309486 in words is "one hundred forty-nine million, three hundred nine thousand, four hundred eighty-six".

Divisors: 1 2 19 38 383 766 7277 10259 14554 20518 194921 389842 3929197 7858394 74654743 149309486