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472978248623 = 1727822249919
BaseRepresentation
bin1101110000111111011…
…00110101001110101111
31200012211200000111220222
412320133230311032233
530222124412423443
61001141101201555
746112561531156
oct6703754651657
91605750014828
10472978248623
11172652988771
12777bb5602bb
13357a8ac288a
1418c6c55c59d
15c483703468
hex6e1fb353af

472978248623 has 4 divisors (see below), whose sum is σ = 500800498560. Its totient is φ = 445155998688.

The previous prime is 472978248553. The next prime is 472978248637. The reversal of 472978248623 is 326842879274.

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 472978248623 - 28 = 472978248367 is a prime.

It is a super-2 number, since 2×4729782486232 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472974248623) 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, 13911124943 + ... + 13911124976.

It is an arithmetic number, because the mean of its divisors is an integer number (125200124640).

Almost surely, 2472978248623 is an apocalyptic number.

472978248623 is a deficient number, since it is larger than the sum of its proper divisors (27822249937).

472978248623 is a wasteful number, since it uses less digits than its factorization.

472978248623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27822249936.

The product of its digits is 65028096, while the sum is 62.

The spelling of 472978248623 in words is "four hundred seventy-two billion, nine hundred seventy-eight million, two hundred forty-eight thousand, six hundred twenty-three".

Divisors: 1 17 27822249919 472978248623