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145015952 = 24431311609
BaseRepresentation
bin10001010010011…
…00010010010000
3101002212120111012
420221030102100
5244111002302
622220110052
73410421014
oct1051142220
9332776435
10145015952
11749486a4
1240695328
1324075473
141538c544
15cae7a52
hex8a4c490

145015952 has 40 divisors (see below), whose sum is σ = 289877280. Its totient is φ = 70237440.

The previous prime is 145015919. The next prime is 145015963. The reversal of 145015952 is 259510541.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89324 + ... + 90932.

It is an arithmetic number, because the mean of its divisors is an integer number (7246932).

Almost surely, 2145015952 is an apocalyptic number.

It is an amenable number.

145015952 is a deficient number, since it is larger than the sum of its proper divisors (144861328).

145015952 is a wasteful number, since it uses less digits than its factorization.

145015952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791 (or 1785 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 145015952 is about 12042.2569313231. The cubic root of 145015952 is about 525.3780521138.

The spelling of 145015952 in words is "one hundred forty-five million, fifteen thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 16 43 86 131 172 262 344 524 688 1048 1609 2096 3218 5633 6436 11266 12872 22532 25744 45064 69187 90128 138374 210779 276748 421558 553496 843116 1106992 1686232 3372464 9063497 18126994 36253988 72507976 145015952