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145267953 = 3316832287
BaseRepresentation
bin10001010100010…
…01110011110001
3101010100101011120
420222021303301
5244142033303
622225332453
73412520505
oct1052116361
9333311146
10145267953
1174aaaa66
1240797129
132413308c
1415416305
15cb47553
hex8a89cf1

145267953 has 16 divisors (see below), whose sum is σ = 200318976. Its totient is φ = 93543120.

The previous prime is 145267949. The next prime is 145267981. The reversal of 145267953 is 359762541.

It is not a de Polignac number, because 145267953 - 22 = 145267949 is a prime.

It is a super-2 number, since 2×1452679532 = 42205556337620418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145267933) 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 15 ways as a sum of consecutive naturals, for example, 62376 + ... + 64662.

It is an arithmetic number, because the mean of its divisors is an integer number (12519936).

Almost surely, 2145267953 is an apocalyptic number.

It is an amenable number.

145267953 is a deficient number, since it is larger than the sum of its proper divisors (55051023).

145267953 is a wasteful number, since it uses less digits than its factorization.

145267953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004.

The product of its digits is 226800, while the sum is 42.

The square root of 145267953 is about 12052.7155861241. The cubic root of 145267953 is about 525.6822006725.

The spelling of 145267953 in words is "one hundred forty-five million, two hundred sixty-seven thousand, nine hundred fifty-three".

Divisors: 1 3 31 93 683 2049 2287 6861 21173 63519 70897 212691 1562021 4686063 48422651 145267953