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145083172 = 221323294789
BaseRepresentation
bin10001010010111…
…00101100100100
3101002222222200211
420221130230210
5244120130142
622221345204
73411121003
oct1051345444
9332888624
10145083172
1174994153
1240708204
1324099c40
14153a8c3a
15cb0c917
hex8a5cb24

145083172 has 96 divisors (see below), whose sum is σ = 304819200. Its totient is φ = 59845632.

The previous prime is 145083097. The next prime is 145083173. The reversal of 145083172 is 271380541.

It is not an unprimeable number, because it can be changed into a prime (145083173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1630104 + ... + 1630192.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2145083172 is an apocalyptic number.

It is an amenable number.

145083172 is an abundant number, since it is smaller than the sum of its proper divisors (159736028).

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

145083172 is a wasteful number, since it uses less digits than its factorization.

145083172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 145083172 is about 12045.0476130234. The cubic root of 145083172 is about 525.4592166498.

The spelling of 145083172 in words is "one hundred forty-five million, eighty-three thousand, one hundred seventy-two".

Divisors: 1 2 4 13 23 26 29 46 47 52 58 89 92 94 116 178 188 299 356 377 598 611 667 754 1081 1157 1196 1222 1334 1363 1508 2047 2162 2314 2444 2581 2668 2726 4094 4183 4324 4628 5162 5452 8188 8366 8671 10324 14053 16732 17342 17719 26611 28106 31349 33553 34684 35438 53222 54379 56212 59363 62698 67106 70876 96209 106444 108758 118726 121307 125396 134212 192418 217516 237452 242614 384836 407537 485228 771719 815074 1250717 1543438 1576991 1630148 2501434 2790061 3086876 3153982 5002868 5580122 6307964 11160244 36270793 72541586 145083172