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145302084 = 223231130199
BaseRepresentation
bin10001010100100…
…10001001000100
3101010102002222200
420222102021010
5244144131314
622230154500
73413022144
oct1052221104
9333362880
10145302084
1175023674
12407b2a30
1324145785
1415424924
15cb52709
hex8a92244

145302084 has 36 divisors (see below), whose sum is σ = 379142400. Its totient is φ = 46871280.

The previous prime is 145302083. The next prime is 145302089. The reversal of 145302084 is 480203541.

145302084 is a `hidden beast` number, since 1 + 453 + 0 + 208 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1453020842 = 42225391229486112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145302083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63984 + ... + 66215.

Almost surely, 2145302084 is an apocalyptic number.

It is an amenable number.

145302084 is an abundant number, since it is smaller than the sum of its proper divisors (233840316).

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

145302084 is a wasteful number, since it uses less digits than its factorization.

145302084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130240 (or 130235 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 145302084 is about 12054.1314079447. The cubic root of 145302084 is about 525.7233674814.

The spelling of 145302084 in words is "one hundred forty-five million, three hundred two thousand, eighty-four".

Divisors: 1 2 3 4 6 9 12 18 31 36 62 93 124 186 279 372 558 1116 130199 260398 390597 520796 781194 1171791 1562388 2343582 4036169 4687164 8072338 12108507 16144676 24217014 36325521 48434028 72651042 145302084