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80737999407 = 321322322913513
BaseRepresentation
bin100101100110001011…
…1000001101000101111
321201101202210022212100
41023030113001220233
52310322411440112
6101031315310143
75555522446242
oct1131427015057
9251352708770
1080737999407
113127154aa4a
1213792bab353
1377c8cba260
143c9cba5259
15217819a2dc
hex12cc5c1a2f

80737999407 has 48 divisors (see below), whose sum is σ = 126715912960. Its totient is φ = 49242484224.

The previous prime is 80737999339. The next prime is 80737999451. The reversal of 80737999407 is 70499973708.

80737999407 is a `hidden beast` number, since 8 + 0 + 73 + 79 + 99 + 407 = 666.

It is not a de Polignac number, because 80737999407 - 212 = 80737995311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80737999457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5968083 + ... + 5981595.

Almost surely, 280737999407 is an apocalyptic number.

80737999407 is a deficient number, since it is larger than the sum of its proper divisors (45977913553).

80737999407 is a wasteful number, since it uses less digits than its factorization.

80737999407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13984 (or 13981 counting only the distinct ones).

The product of its (nonzero) digits is 24004512, while the sum is 63.

The spelling of 80737999407 in words is "eighty billion, seven hundred thirty-seven million, nine hundred ninety-nine thousand, four hundred seven".

Divisors: 1 3 9 13 39 117 223 229 669 687 2007 2061 2899 2977 8697 8931 13513 26091 26793 40539 51067 121617 153201 175669 459603 527007 663871 1581021 1991613 3013399 3094477 5974839 9040197 9283431 27120591 27850293 39174187 40228201 117522561 120684603 352567683 362053809 690068371 2070205113 6210615339 8970888823 26912666469 80737999407