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145234984 = 23131139997
BaseRepresentation
bin10001010100000…
…01110000101000
3101010021200221111
420222001300220
5244140004414
622224520104
73412322416
oct1052016050
9333250844
10145234984
1174a88214
1240780034
132412107b
14154082b6
15cb3c8c4
hex8a81c28

145234984 has 32 divisors (see below), whose sum is σ = 276645600. Its totient is φ = 71472960.

The previous prime is 145234981. The next prime is 145235003. The reversal of 145234984 is 489432541.

It is not an unprimeable number, because it can be changed into a prime (145234981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145174 + ... + 146170.

It is an arithmetic number, because the mean of its divisors is an integer number (8645175).

Almost surely, 2145234984 is an apocalyptic number.

It is an amenable number.

145234984 is a deficient number, since it is larger than the sum of its proper divisors (131410616).

145234984 is a wasteful number, since it uses less digits than its factorization.

145234984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273 (or 1269 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 145234984 is about 12051.3478084403. The cubic root of 145234984 is about 525.6424292767.

The spelling of 145234984 in words is "one hundred forty-five million, two hundred thirty-four thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 131 139 262 278 524 556 997 1048 1112 1994 3988 7976 18209 36418 72836 130607 138583 145672 261214 277166 522428 554332 1044856 1108664 18154373 36308746 72617492 145234984