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149625147 = 379197753
BaseRepresentation
bin10001110101100…
…01100100111011
3101102112202010010
420322301210323
5301301001042
622502553003
73464535630
oct1072614473
9342482103
10149625147
1177506651
1242138763
1324cca3b9
1415c2c187
15d20859c
hex8eb193b

149625147 has 16 divisors (see below), whose sum is σ = 228277760. Its totient is φ = 85396032.

The previous prime is 149625139. The next prime is 149625149. The reversal of 149625147 is 741526941.

It is not a de Polignac number, because 149625147 - 23 = 149625139 is a prime.

It is a super-2 number, since 2×1496251472 = 44775369229543218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149625149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15423 + ... + 23175.

It is an arithmetic number, because the mean of its divisors is an integer number (14267360).

Almost surely, 2149625147 is an apocalyptic number.

149625147 is a deficient number, since it is larger than the sum of its proper divisors (78652613).

149625147 is an equidigital number, since it uses as much as digits as its factorization.

149625147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8682.

The product of its digits is 60480, while the sum is 39.

The square root of 149625147 is about 12232.1358314891. The cubic root of 149625147 is about 530.8863145529.

The spelling of 149625147 in words is "one hundred forty-nine million, six hundred twenty-five thousand, one hundred forty-seven".

Divisors: 1 3 7 21 919 2757 6433 7753 19299 23259 54271 162813 7125007 21375021 49875049 149625147