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145028812 = 221671991091
BaseRepresentation
bin10001010010011…
…11011011001100
3101002220020010111
420221033123030
5244111410222
622220245404
73410503345
oct1051173314
9332806114
10145028812
1174957325
12406a0864
132407b286
14153930cc
15caeb777
hex8a4f6cc

145028812 has 24 divisors (see below), whose sum is σ = 256838400. Its totient is φ = 71652240.

The previous prime is 145028791. The next prime is 145028813. The reversal of 145028812 is 218820541.

145028812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (145028813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132387 + ... + 133477.

It is an arithmetic number, because the mean of its divisors is an integer number (10701600).

Almost surely, 2145028812 is an apocalyptic number.

It is an amenable number.

145028812 is a deficient number, since it is larger than the sum of its proper divisors (111809588).

145028812 is a wasteful number, since it uses less digits than its factorization.

145028812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461 (or 1459 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 145028812 is about 12042.7908725511. The cubic root of 145028812 is about 525.3935818123.

The spelling of 145028812 in words is "one hundred forty-five million, twenty-eight thousand, eight hundred twelve".

Divisors: 1 2 4 167 199 334 398 668 796 1091 2182 4364 33233 66466 132932 182197 217109 364394 434218 728788 868436 36257203 72514406 145028812