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149549425 = 52173111351
BaseRepresentation
bin10001110100111…
…11000101110001
3101102101220020121
420322133011301
5301241040200
622501210241
73464102104
oct1072370561
9342356217
10149549425
1177464773
1242100981
1324ca1aac
1415c0c73b
15d1e0e1a
hex8e9f171

149549425 has 24 divisors (see below), whose sum is σ = 202701312. Its totient is φ = 108960000.

The previous prime is 149549401. The next prime is 149549431. The reversal of 149549425 is 524945941.

It is not a de Polignac number, because 149549425 - 27 = 149549297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7500 + ... + 18850.

It is an arithmetic number, because the mean of its divisors is an integer number (8445888).

Almost surely, 2149549425 is an apocalyptic number.

It is an amenable number.

149549425 is a deficient number, since it is larger than the sum of its proper divisors (53151887).

149549425 is a wasteful number, since it uses less digits than its factorization.

149549425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11409 (or 11404 counting only the distinct ones).

The product of its digits is 259200, while the sum is 43.

The square root of 149549425 is about 12229.0402321687. The cubic root of 149549425 is about 530.7967428072.

The spelling of 149549425 in words is "one hundred forty-nine million, five hundred forty-nine thousand, four hundred twenty-five".

Divisors: 1 5 17 25 31 85 155 425 527 775 2635 11351 13175 56755 192967 283775 351881 964835 1759405 4824175 5981977 8797025 29909885 149549425