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472289831 = 1344382009
BaseRepresentation
bin11100001001101…
…001001000100111
31012220200210211222
4130021221020213
51431401233311
6114510450555
714463253166
oct3411511047
91186623758
10472289831
11222660382
12112203a5b
1376b02450
1446a213dd
152b6e2adb
hex1c269227

472289831 has 8 divisors (see below), whose sum is σ = 509774160. Its totient is φ = 434970432.

The previous prime is 472289819. The next prime is 472289833. The reversal of 472289831 is 138982274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 472289831 - 210 = 472288807 is a prime.

It is a super-2 number, since 2×4722898312 = 446115368932017122, which 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 (472289833) 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 7 ways as a sum of consecutive naturals, for example, 35246 + ... + 46763.

It is an arithmetic number, because the mean of its divisors is an integer number (63721770).

Almost surely, 2472289831 is an apocalyptic number.

472289831 is a deficient number, since it is larger than the sum of its proper divisors (37484329).

472289831 is a wasteful number, since it uses less digits than its factorization.

472289831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82465.

The product of its digits is 193536, while the sum is 44.

The square root of 472289831 is about 21732.2302352980. The cubic root of 472289831 is about 778.7586165330.

The spelling of 472289831 in words is "four hundred seventy-two million, two hundred eighty-nine thousand, eight hundred thirty-one".

Divisors: 1 13 443 5759 82009 1066117 36329987 472289831