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80073426487 = 431862172709
BaseRepresentation
bin100101010010010111…
…1111000011000110111
321122200110021112012111
41022210233320120313
52302442244121422
6100441335231451
75533202615665
oct1124457703067
9248613245174
1080073426487
1130a603a852a
1213628518587
137721403142
143c3880dc35
152139b74a77
hex12a4bf8637

80073426487 has 4 divisors (see below), whose sum is σ = 81935599240. Its totient is φ = 78211253736.

The previous prime is 80073426479. The next prime is 80073426509. The reversal of 80073426487 is 78462437008.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80073426487 - 23 = 80073426479 is a prime.

It is a super-2 number, since 2×800734264872 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80073426487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80073426437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931086312 + ... + 931086397.

It is an arithmetic number, because the mean of its divisors is an integer number (20483899810).

Almost surely, 280073426487 is an apocalyptic number.

80073426487 is a deficient number, since it is larger than the sum of its proper divisors (1862172753).

80073426487 is a wasteful number, since it uses less digits than its factorization.

80073426487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862172752.

The product of its (nonzero) digits is 1806336, while the sum is 49.

The spelling of 80073426487 in words is "eighty billion, seventy-three million, four hundred twenty-six thousand, four hundred eighty-seven".

Divisors: 1 43 1862172709 80073426487