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145712910 = 2357693871
BaseRepresentation
bin10001010111101…
…10011100001110
3101011011222112110
420223312130032
5244300303120
622243044450
73416352660
oct1053663416
9334158473
10145712910
11752842a2
1240970726
132425a775
14154d0530
15cbd42e0
hex8af670e

145712910 has 32 divisors (see below), whose sum is σ = 399670272. Its totient is φ = 33305760.

The previous prime is 145712867. The next prime is 145712923. The reversal of 145712910 is 19217541.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346726 + ... + 347145.

It is an arithmetic number, because the mean of its divisors is an integer number (12489696).

Almost surely, 2145712910 is an apocalyptic number.

145712910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145712910 is an abundant number, since it is smaller than the sum of its proper divisors (253957362).

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

145712910 is a wasteful number, since it uses less digits than its factorization.

145712910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693888.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 145712910 is about 12071.1602590637. The cubic root of 145712910 is about 526.2183766540.

The spelling of 145712910 in words is "one hundred forty-five million, seven hundred twelve thousand, nine hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 693871 1387742 2081613 3469355 4163226 4857097 6938710 9714194 10408065 14571291 20816130 24285485 29142582 48570970 72856455 145712910