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145937028 = 22337328687
BaseRepresentation
bin10001011001011…
…01001010000100
3101011121100222010
420230231022010
5244324441103
622251534220
73421305246
oct1054551204
9334540863
10145937028
1175417716
1240a5a370
1324308793
141554c096
15cc2a903
hex8b2d284

145937028 has 24 divisors (see below), whose sum is σ = 349724032. Its totient is φ = 47330784.

The previous prime is 145937003. The next prime is 145937039. The reversal of 145937028 is 820739541.

It is a super-2 number, since 2×1459370282 = 42595232282945568, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163900 + ... + 164787.

Almost surely, 2145937028 is an apocalyptic number.

It is an amenable number.

145937028 is an abundant number, since it is smaller than the sum of its proper divisors (203787004).

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

145937028 is a wasteful number, since it uses less digits than its factorization.

145937028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328731 (or 328729 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 145937028 is about 12080.4398926529. The cubic root of 145937028 is about 526.4880269714.

The spelling of 145937028 in words is "one hundred forty-five million, nine hundred thirty-seven thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 328687 657374 986061 1314748 1972122 3944244 12161419 24322838 36484257 48645676 72968514 145937028