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145512460 = 2257275623
BaseRepresentation
bin10001010110001…
…01100000001100
3101010210210120101
420223011200030
5244222344320
622234500444
73414556402
oct1053054014
9333723511
10145512460
1175157735
1240894724
13241ba462
141547b472
15cb94c0a
hex8ac580c

145512460 has 12 divisors (see below), whose sum is σ = 305576208. Its totient is φ = 58204976.

The previous prime is 145512457. The next prime is 145512533. The reversal of 145512460 is 64215541.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3637792 + ... + 3637831.

It is an arithmetic number, because the mean of its divisors is an integer number (25464684).

Almost surely, 2145512460 is an apocalyptic number.

145512460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145512460 is an abundant number, since it is smaller than the sum of its proper divisors (160063748).

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

145512460 is a wasteful number, since it uses less digits than its factorization.

145512460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275632 (or 7275630 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 145512460 is about 12062.8545543748. The cubic root of 145512460 is about 525.9769684432.

The spelling of 145512460 in words is "one hundred forty-five million, five hundred twelve thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 7275623 14551246 29102492 36378115 72756230 145512460