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64300980 = 22351071683
BaseRepresentation
bin1111010101001…
…0011110110100
311110222211100210
43311102132310
5112430112410
610214105420
71410356262
oct365223664
9143884323
1064300980
1133329307
121964b270
1310424823
14877b432
1559a2220
hex3d527b4

64300980 has 24 divisors (see below), whose sum is σ = 180042912. Its totient is φ = 17146912.

The previous prime is 64300967. The next prime is 64300981. The reversal of 64300980 is 8900346.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64300981) 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, 535782 + ... + 535901.

It is an arithmetic number, because the mean of its divisors is an integer number (7501788).

Almost surely, 264300980 is an apocalyptic number.

64300980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64300980 is an abundant number, since it is smaller than the sum of its proper divisors (115741932).

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

64300980 is a wasteful number, since it uses less digits than its factorization.

64300980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071695 (or 1071693 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 64300980 is about 8018.7891854070. The cubic root of 64300980 is about 400.6260612736.

The spelling of 64300980 in words is "sixty-four million, three hundred thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1071683 2143366 3215049 4286732 5358415 6430098 10716830 12860196 16075245 21433660 32150490 64300980