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145611928 = 23721133769
BaseRepresentation
bin10001010110111…
…01110010011000
3101010222212000101
420223131302120
5244234040203
622240545144
73415452400
oct1053356230
9333885011
10145611928
1175215440
12409221b4
1324223807
14154a5800
15cbb441d
hex8addc98

145611928 has 48 divisors (see below), whose sum is σ = 346480200. Its totient is φ = 56730240.

The previous prime is 145611923. The next prime is 145611937. The reversal of 145611928 is 829116541.

145611928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145611923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12573 + ... + 21196.

Almost surely, 2145611928 is an apocalyptic number.

It is an amenable number.

145611928 is an abundant number, since it is smaller than the sum of its proper divisors (200868272).

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

145611928 is a wasteful number, since it uses less digits than its factorization.

145611928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33800 (or 33789 counting only the distinct ones).

The product of its digits is 17280, while the sum is 37.

The square root of 145611928 is about 12066.9767547634. The cubic root of 145611928 is about 526.0967885618.

The spelling of 145611928 in words is "one hundred forty-five million, six hundred eleven thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 11 14 22 28 44 49 56 77 88 98 154 196 308 392 539 616 1078 2156 4312 33769 67538 135076 236383 270152 371459 472766 742918 945532 1485836 1654681 1891064 2600213 2971672 3309362 5200426 6618724 10400852 13237448 18201491 20801704 36402982 72805964 145611928