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149237808 = 2433109121
BaseRepresentation
bin10001110010100…
…11000000110000
3101101211001210020
420321103000300
5301201102213
622450403440
73461333436
oct1071230060
9341731706
10149237808
1177271635
1241b90580
1324bc2cc5
1415b6ad56
15d17d923
hex8e53030

149237808 has 20 divisors (see below), whose sum is σ = 385531128. Its totient is φ = 49745920.

The previous prime is 149237783. The next prime is 149237819. The reversal of 149237808 is 808732941.

It is a self number, because there is not a number n which added to its sum of digits gives 149237808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1554513 + ... + 1554608.

Almost surely, 2149237808 is an apocalyptic number.

It is an amenable number.

149237808 is an abundant number, since it is smaller than the sum of its proper divisors (236293320).

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

149237808 is a wasteful number, since it uses less digits than its factorization.

149237808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109132 (or 3109126 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 149237808 is about 12216.2927273375. The cubic root of 149237808 is about 530.4278116950.

The spelling of 149237808 in words is "one hundred forty-nine million, two hundred thirty-seven thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 3109121 6218242 9327363 12436484 18654726 24872968 37309452 49745936 74618904 149237808