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145840908 = 223115110559
BaseRepresentation
bin10001011000101…
…01101100001100
3101011102111010010
420230111230030
5244313402113
622245513220
73420425103
oct1054255414
9334374103
10145840908
1175361484
1240a12810
13242a3ac5
141552503a
15cc0c1c3
hex8b15b0c

145840908 has 24 divisors (see below), whose sum is σ = 340623360. Its totient is φ = 48566800.

The previous prime is 145840897. The next prime is 145840921. The reversal of 145840908 is 809048541.

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, 8533 + ... + 19091.

It is an arithmetic number, because the mean of its divisors is an integer number (14192640).

Almost surely, 2145840908 is an apocalyptic number.

It is an amenable number.

145840908 is an abundant number, since it is smaller than the sum of its proper divisors (194782452).

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

145840908 is a wasteful number, since it uses less digits than its factorization.

145840908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11717 (or 11715 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 145840908 is about 12076.4609054143. The cubic root of 145840908 is about 526.3724128504.

The spelling of 145840908 in words is "one hundred forty-five million, eight hundred forty thousand, nine hundred eight".

Divisors: 1 2 3 4 6 12 1151 2302 3453 4604 6906 10559 13812 21118 31677 42236 63354 126708 12153409 24306818 36460227 48613636 72920454 145840908