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145375680 = 2635151433
BaseRepresentation
bin10001010101001…
…00000111000000
3101010112211221110
420222210013000
5244204010210
622231523320
73413446542
oct1052440700
9333484843
10145375680
117507399a
1240829540
1324170118
1415443692
15cb69420
hex8aa41c0

145375680 has 56 divisors (see below), whose sum is σ = 461570832. Its totient is φ = 38766592.

The previous prime is 145375679. The next prime is 145375697. The reversal of 145375680 is 86573541.

It is a super-2 number, since 2×1453756802 = 42268176670924800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74757 + ... + 76676.

Almost surely, 2145375680 is an apocalyptic number.

145375680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145375680 is an abundant number, since it is smaller than the sum of its proper divisors (316195152).

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

145375680 is a wasteful number, since it uses less digits than its factorization.

145375680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151453 (or 151443 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 145375680 is about 12057.1837507770. The cubic root of 145375680 is about 525.8121127247.

The spelling of 145375680 in words is "one hundred forty-five million, three hundred seventy-five thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 151433 302866 454299 605732 757165 908598 1211464 1514330 1817196 2271495 2422928 3028660 3634392 4542990 4845856 6057320 7268784 9085980 9691712 12114640 14537568 18171960 24229280 29075136 36343920 48458560 72687840 145375680