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145416860 = 2257270843
BaseRepresentation
bin10001010101011…
…10001010011100
3101010121221102122
420222232022130
5244211314420
622232442112
73414010601
oct1052561234
9333557378
10145416860
11750a1926
1240849338
1324185aa4
14154546a8
15cb76725
hex8aae29c

145416860 has 12 divisors (see below), whose sum is σ = 305375448. Its totient is φ = 58166736.

The previous prime is 145416857. The next prime is 145416889. The reversal of 145416860 is 68614541.

It is a super-2 number, since 2×1454168602 = 42292126344519200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145416860.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3635402 + ... + 3635441.

It is an arithmetic number, because the mean of its divisors is an integer number (25447954).

Almost surely, 2145416860 is an apocalyptic number.

145416860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145416860 is an abundant number, since it is smaller than the sum of its proper divisors (159958588).

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

145416860 is a wasteful number, since it uses less digits than its factorization.

145416860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270852 (or 7270850 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 145416860 is about 12058.8913254909. The cubic root of 145416860 is about 525.8617562841.

The spelling of 145416860 in words is "one hundred forty-five million, four hundred sixteen thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 7270843 14541686 29083372 36354215 72708430 145416860