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149481914 = 2313238789
BaseRepresentation
bin10001110100011…
…10100110111010
3101102021110122012
420322032212322
5301231410124
622455525522
73463401221
oct1072164672
9342243565
10149481914
1177418a7a
12420898a2
1324c7a14a
1415bd1cb8
15d1cae0e
hex8e8e9ba

149481914 has 8 divisors (see below), whose sum is σ = 224940180. Its totient is φ = 74501856.

The previous prime is 149481883. The next prime is 149481923. The reversal of 149481914 is 419184941.

It can be written as a sum of positive squares in 2 ways, for example, as 113060689 + 36421225 = 10633^2 + 6035^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1494819142 = 44689685226206792, which contains 22 as substring.

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, 118769 + ... + 120020.

Almost surely, 2149481914 is an apocalyptic number.

149481914 is a deficient number, since it is larger than the sum of its proper divisors (75458266).

149481914 is a wasteful number, since it uses less digits than its factorization.

149481914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239104.

The product of its digits is 41472, while the sum is 41.

The square root of 149481914 is about 12226.2796467282. The cubic root of 149481914 is about 530.7168583754.

The spelling of 149481914 in words is "one hundred forty-nine million, four hundred eighty-one thousand, nine hundred fourteen".

Divisors: 1 2 313 626 238789 477578 74740957 149481914