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145711508 = 22167218131
BaseRepresentation
bin10001010111101…
…10000110010100
3101011011220121112
420223312012110
5244300232013
622243034152
73416345615
oct1053660624
9334156545
10145711508
1175283238
124096b958
1324259c37
14154cdc0c
15cbd3ba8
hex8af6194

145711508 has 12 divisors (see below), whose sum is σ = 256523232. Its totient is φ = 72419160.

The previous prime is 145711507. The next prime is 145711523. The reversal of 145711508 is 805117541.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145711507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108398 + ... + 109733.

It is an arithmetic number, because the mean of its divisors is an integer number (21376936).

Almost surely, 2145711508 is an apocalyptic number.

It is an amenable number.

145711508 is a deficient number, since it is larger than the sum of its proper divisors (110811724).

145711508 is a wasteful number, since it uses less digits than its factorization.

145711508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218302 (or 218300 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 32.

The square root of 145711508 is about 12071.1021866274. The cubic root of 145711508 is about 526.2166889506.

The spelling of 145711508 in words is "one hundred forty-five million, seven hundred eleven thousand, five hundred eight".

Divisors: 1 2 4 167 334 668 218131 436262 872524 36427877 72855754 145711508