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508472692991 = 3010316891097
BaseRepresentation
bin1110110011000110101…
…01011001000011111111
31210121110100002010000122
413121203111121003333
531312323002133431
61025331130245155
751510266402234
oct7314325310377
91717410063018
10508472692991
1118670764110a
12826665867bb
1338c445a4993
141a8785b578b
15d35e8a0a7b
hex76635590ff

508472692991 has 4 divisors (see below), whose sum is σ = 508489614192. Its totient is φ = 508455771792.

The previous prime is 508472692979. The next prime is 508472692997. The reversal of 508472692991 is 199296274805.

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 508472692991 - 26 = 508472692927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508472692997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8415446 + ... + 8475651.

It is an arithmetic number, because the mean of its divisors is an integer number (127122403548).

Almost surely, 2508472692991 is an apocalyptic number.

508472692991 is a deficient number, since it is larger than the sum of its proper divisors (16921201).

508472692991 is a wasteful number, since it uses less digits than its factorization.

508472692991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16921200.

The product of its (nonzero) digits is 19595520, while the sum is 62.

It can be divided in two parts, 5084726 and 92991, that added together give a cube (5177717 = 1733).

The spelling of 508472692991 in words is "five hundred eight billion, four hundred seventy-two million, six hundred ninety-two thousand, nine hundred ninety-one".

Divisors: 1 30103 16891097 508472692991