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472553517 = 3157517839
BaseRepresentation
bin11100001010101…
…001100000101101
31012221012012120010
4130022221200231
51431433203032
6114520243433
714465432022
oct3412514055
91187165503
10472553517
112228204a7
12112310579
1376b95487
1446a8d549
152b745ccc
hex1c2a982d

472553517 has 4 divisors (see below), whose sum is σ = 630071360. Its totient is φ = 315035676.

The previous prime is 472553509. The next prime is 472553563. The reversal of 472553517 is 715355274.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 472553517 - 23 = 472553509 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 (472553567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78758917 + ... + 78758922.

It is an arithmetic number, because the mean of its divisors is an integer number (157517840).

Almost surely, 2472553517 is an apocalyptic number.

It is an amenable number.

472553517 is a deficient number, since it is larger than the sum of its proper divisors (157517843).

472553517 is a wasteful number, since it uses less digits than its factorization.

472553517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157517842.

The product of its digits is 147000, while the sum is 39.

The square root of 472553517 is about 21738.2960923804. The cubic root of 472553517 is about 778.9035201683.

The spelling of 472553517 in words is "four hundred seventy-two million, five hundred fifty-three thousand, five hundred seventeen".

Divisors: 1 3 157517839 472553517