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145904910 = 23531156887
BaseRepresentation
bin10001011001001…
…01010100001110
3101011112201220120
420230211110032
5244322424120
622251125410
73421112514
oct1054452416
9334481816
10145904910
11753a5578
1240a43866
13242c6c88
14155404b4
15cc21140
hex8b2550e

145904910 has 32 divisors (see below), whose sum is σ = 361469952. Its totient is φ = 37652640.

The previous prime is 145904861. The next prime is 145904911. The reversal of 145904910 is 19409541.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145904911) 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, 77514 + ... + 79373.

It is an arithmetic number, because the mean of its divisors is an integer number (11295936).

Almost surely, 2145904910 is an apocalyptic number.

145904910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145904910 is an abundant number, since it is smaller than the sum of its proper divisors (215565042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145904910 is a wasteful number, since it uses less digits than its factorization.

145904910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156928.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 145904910 is about 12079.1104804948. The cubic root of 145904910 is about 526.4494007608.

The spelling of 145904910 in words is "one hundred forty-five million, nine hundred four thousand, nine hundred ten".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 156887 313774 470661 784435 941322 1568870 2353305 4706610 4863497 9726994 14590491 24317485 29180982 48634970 72952455 145904910