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80764980 = 22351346083
BaseRepresentation
bin1001101000001…
…10000000110100
312121222021201120
410310012000310
5131133434410
612003023540
72000330262
oct464060064
9177867646
1080764980
1141653a1a
122306abb0
131396a63a
14aa25432
157155570
hex4d06034

80764980 has 24 divisors (see below), whose sum is σ = 226142112. Its totient is φ = 21537312.

The previous prime is 80764973. The next prime is 80764987. The reversal of 80764980 is 8946708.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80764973) and next prime (80764987).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80764987) 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, 672982 + ... + 673101.

It is an arithmetic number, because the mean of its divisors is an integer number (9422588).

Almost surely, 280764980 is an apocalyptic number.

It is an amenable number.

80764980 is an abundant number, since it is smaller than the sum of its proper divisors (145377132).

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

80764980 is a wasteful number, since it uses less digits than its factorization.

80764980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346095 (or 1346093 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 80764980 is about 8986.9338486494. The cubic root of 80764980 is about 432.2559996728.

The spelling of 80764980 in words is "eighty million, seven hundred sixty-four thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1346083 2692166 4038249 5384332 6730415 8076498 13460830 16152996 20191245 26921660 40382490 80764980