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145504079 = 722969471
BaseRepresentation
bin10001010110000…
…11011101001111
3101010210101001222
420223003131033
5244222112304
622234353555
73414523100
oct1053033517
9333711058
10145504079
1175151406
124088b8bb
13241b66b6
14154783a7
15cb924be
hex8ac374f

145504079 has 6 divisors (see below), whose sum is σ = 169259904. Its totient is φ = 124717740.

The previous prime is 145504067. The next prime is 145504103. The reversal of 145504079 is 970405541.

It is not a de Polignac number, because 145504079 - 28 = 145503823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145504019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1484687 + ... + 1484784.

It is an arithmetic number, because the mean of its divisors is an integer number (28209984).

Almost surely, 2145504079 is an apocalyptic number.

145504079 is a deficient number, since it is larger than the sum of its proper divisors (23755825).

145504079 is an equidigital number, since it uses as much as digits as its factorization.

145504079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969485 (or 2969478 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 145504079 is about 12062.5071606196. The cubic root of 145504079 is about 525.9668701153.

The spelling of 145504079 in words is "one hundred forty-five million, five hundred four thousand, seventy-nine".

Divisors: 1 7 49 2969471 20786297 145504079