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145379883 = 31147671399
BaseRepresentation
bin10001010101001…
…01001000101011
3101010120001201010
420222211020223
5244204124013
622231555003
73413465025
oct1052451053
9333501633
10145379883
1175077070
124082ba63
1324171ccc
1415445015
15cb6a7c3
hex8aa522b

145379883 has 32 divisors (see below), whose sum is σ = 219340800. Its totient is φ = 84886560.

The previous prime is 145379837. The next prime is 145379911. The reversal of 145379883 is 388973541.

It is not a de Polignac number, because 145379883 - 28 = 145379627 is a prime.

It is a super-2 number, since 2×1453798832 = 42270620762187378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145379833) 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, 103218 + ... + 104616.

It is an arithmetic number, because the mean of its divisors is an integer number (6854400).

Almost surely, 2145379883 is an apocalyptic number.

145379883 is a deficient number, since it is larger than the sum of its proper divisors (73960917).

145379883 is a wasteful number, since it uses less digits than its factorization.

145379883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527.

The product of its digits is 725760, while the sum is 48.

The square root of 145379883 is about 12057.3580439498. The cubic root of 145379883 is about 525.8171799799.

The spelling of 145379883 in words is "one hundred forty-five million, three hundred seventy-nine thousand, eight hundred eighty-three".

Divisors: 1 3 11 33 47 67 141 201 517 737 1399 1551 2211 3149 4197 9447 15389 34639 46167 65753 93733 103917 197259 281199 723283 1031063 2169849 3093189 4405451 13216353 48459961 145379883