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145102344 = 23317355643
BaseRepresentation
bin10001010011000…
…01011000001000
3101010000221222220
420221201120020
5244121233334
622222014040
73411230622
oct1051413010
9333027886
10145102344
11749a75a2
1240717320
13240a589a
14153b1c12
15cb13449
hex8a61608

145102344 has 32 divisors (see below), whose sum is σ = 384095520. Its totient is φ = 45522176.

The previous prime is 145102333. The next prime is 145102367. The reversal of 145102344 is 443201541.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 177414 + ... + 178229.

It is an arithmetic number, because the mean of its divisors is an integer number (12002985).

Almost surely, 2145102344 is an apocalyptic number.

It is an amenable number.

145102344 is an abundant number, since it is smaller than the sum of its proper divisors (238993176).

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

145102344 is a wasteful number, since it uses less digits than its factorization.

145102344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355669 (or 355665 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 145102344 is about 12045.8434324874. The cubic root of 145102344 is about 525.4823612140.

Adding to 145102344 its reverse (443201541), we get a palindrome (588303885).

The spelling of 145102344 in words is "one hundred forty-five million, one hundred two thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 355643 711286 1066929 1422572 2133858 2845144 4267716 6045931 8535432 12091862 18137793 24183724 36275586 48367448 72551172 145102344