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145151995 = 51571791033
BaseRepresentation
bin10001010011011…
…01011111111011
3101010010111002211
420221231133323
5244124330440
622223035551
73411525442
oct1051553773
9333114084
10145151995
1174a3092a
124073bbb7
13240c2371
14153c5d59
15cb22eea
hex8a6d7fb

145151995 has 16 divisors (see below), whose sum is σ = 176441760. Its totient is φ = 114626304.

The previous prime is 145151987. The next prime is 145152023. The reversal of 145151995 is 599151541.

It is a cyclic number.

It is not a de Polignac number, because 145151995 - 23 = 145151987 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139999 + ... + 141031.

It is an arithmetic number, because the mean of its divisors is an integer number (11027610).

Almost surely, 2145151995 is an apocalyptic number.

145151995 is a deficient number, since it is larger than the sum of its proper divisors (31289765).

145151995 is a wasteful number, since it uses less digits than its factorization.

145151995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374.

The product of its digits is 40500, while the sum is 40.

The square root of 145151995 is about 12047.9041745857. The cubic root of 145151995 is about 525.5422907522.

The spelling of 145151995 in words is "one hundred forty-five million, one hundred fifty-one thousand, nine hundred ninety-five".

Divisors: 1 5 157 179 785 895 1033 5165 28103 140515 162181 184907 810905 924535 29030399 145151995