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149465590 = 2519786661
BaseRepresentation
bin10001110100010…
…10100111110110
3101102020122020121
420322022213312
5301230344330
622455322154
73463302511
oct1072124766
9342218217
10149465590
117740778a
124208035a
1324c728a1
1415bc9d78
15d1c617a
hex8e8a9f6

149465590 has 16 divisors (see below), whose sum is σ = 283198320. Its totient is φ = 56639520.

The previous prime is 149465573. The next prime is 149465611. The reversal of 149465590 is 95564941.

149465590 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 393141 + ... + 393520.

It is an arithmetic number, because the mean of its divisors is an integer number (17699895).

Almost surely, 2149465590 is an apocalyptic number.

149465590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149465590 is a deficient number, since it is larger than the sum of its proper divisors (133732730).

149465590 is a wasteful number, since it uses less digits than its factorization.

149465590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786687.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 149465590 is about 12225.6120501184. The cubic root of 149465590 is about 530.6975388981.

The spelling of 149465590 in words is "one hundred forty-nine million, four hundred sixty-five thousand, five hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 786661 1573322 3933305 7866610 14946559 29893118 74732795 149465590