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145056432 = 2438873407
BaseRepresentation
bin10001010010101…
…10001010110000
3101002221122000110
420221112022300
5244113301212
622221021320
73410650023
oct1051261260
9332848013
10145056432
1174976054
12406b4840
132408aa11
141539d1ba
15cb04a3c
hex8a562b0

145056432 has 40 divisors (see below), whose sum is σ = 375261696. Its totient is φ = 48283456.

The previous prime is 145056421. The next prime is 145056487. The reversal of 145056432 is 234650541.

It is a self number, because there is not a number n which added to its sum of digits gives 145056432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40873 + ... + 44279.

Almost surely, 2145056432 is an apocalyptic number.

145056432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145056432 is an abundant number, since it is smaller than the sum of its proper divisors (230205264).

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

145056432 is a wasteful number, since it uses less digits than its factorization.

145056432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305 (or 4299 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 145056432 is about 12043.9375621098. The cubic root of 145056432 is about 525.4269325409.

The spelling of 145056432 in words is "one hundred forty-five million, fifty-six thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 887 1774 2661 3407 3548 5322 6814 7096 10221 10644 13628 14192 20442 21288 27256 40884 42576 54512 81768 163536 3022009 6044018 9066027 12088036 18132054 24176072 36264108 48352144 72528216 145056432