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145742910 = 23543112979
BaseRepresentation
bin10001010111111…
…01110000111110
3101011020111200120
420223331300332
5244302233120
622243435410
73416536305
oct1053756076
9334214616
10145742910
11752a4895
1240985b66
132426b311
14154db43c
15cbdd140
hex8afdc3e

145742910 has 32 divisors (see below), whose sum is σ = 357920640. Its totient is φ = 37960608.

The previous prime is 145742903. The next prime is 145742923. The reversal of 145742910 is 19247541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55200 + ... + 57779.

It is an arithmetic number, because the mean of its divisors is an integer number (11185020).

Almost surely, 2145742910 is an apocalyptic number.

145742910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145742910 is an abundant number, since it is smaller than the sum of its proper divisors (212177730).

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

145742910 is a wasteful number, since it uses less digits than its factorization.

145742910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113032.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 145742910 is about 12072.4028262811. The cubic root of 145742910 is about 526.2544875427.

The spelling of 145742910 in words is "one hundred forty-five million, seven hundred forty-two thousand, nine hundred ten".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 112979 225958 338937 564895 677874 1129790 1694685 3389370 4858097 9716194 14574291 24290485 29148582 48580970 72871455 145742910