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145179790 = 2572073997
BaseRepresentation
bin10001010011101…
…00010010001110
3101010011220020021
420221310102032
5244131223130
622223412354
73412002460
oct1051642216
9333156207
10145179790
1174a4a7a8
12407540ba
1324101c02
14153d2130
15cb2b37a
hex8a7448e

145179790 has 16 divisors (see below), whose sum is σ = 298655712. Its totient is φ = 49775904.

The previous prime is 145179767. The next prime is 145179799. The reversal of 145179790 is 97971541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145179799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036929 + ... + 1037068.

It is an arithmetic number, because the mean of its divisors is an integer number (18665982).

Almost surely, 2145179790 is an apocalyptic number.

145179790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145179790 is an abundant number, since it is smaller than the sum of its proper divisors (153475922).

145179790 is a wasteful number, since it uses less digits than its factorization.

145179790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074011.

The product of its (nonzero) digits is 79380, while the sum is 43.

The square root of 145179790 is about 12049.0576395003. The cubic root of 145179790 is about 525.5758337879.

The spelling of 145179790 in words is "one hundred forty-five million, one hundred seventy-nine thousand, seven hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 2073997 4147994 10369985 14517979 20739970 29035958 72589895 145179790