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80940628 = 2231652747
BaseRepresentation
bin1001101001100…
…00111001010100
312122022012200001
410310300321110
5131210100003
612010501044
72001661336
oct464607124
9178265601
1080940628
114176398a
1223134784
13139cc582
14aa6d456
15718c61d
hex4d30e54

80940628 has 12 divisors (see below), whose sum is σ = 146215552. Its totient is φ = 39164760.

The previous prime is 80940599. The next prime is 80940631. The reversal of 80940628 is 82604908.

It is a super-2 number, since 2×809406282 = 13102770522068768, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 326250 + ... + 326497.

Almost surely, 280940628 is an apocalyptic number.

It is an amenable number.

80940628 is a deficient number, since it is larger than the sum of its proper divisors (65274924).

80940628 is a wasteful number, since it uses less digits than its factorization.

80940628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652782 (or 652780 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 80940628 is about 8996.7009509042. The cubic root of 80940628 is about 432.5691301395.

The spelling of 80940628 in words is "eighty million, nine hundred forty thousand, six hundred twenty-eight".

Divisors: 1 2 4 31 62 124 652747 1305494 2610988 20235157 40470314 80940628