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470273831 = 2916216339
BaseRepresentation
bin11100000001111…
…100111100100111
31012202220101102022
4130001330330213
51430342230311
6114355333355
714440155506
oct3401747447
91182811368
10470273831
11221503765
121115b125b
1376577951
144665883d
152b4455db
hex1c07cf27

470273831 has 4 divisors (see below), whose sum is σ = 486490200. Its totient is φ = 454057464.

The previous prime is 470273821. The next prime is 470273849. The reversal of 470273831 is 138372074.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138372074 = 269186037.

It is a cyclic number.

It is not a de Polignac number, because 470273831 - 210 = 470272807 is a prime.

It is a super-2 number, since 2×4702738312 = 442314952246833122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 470273791 and 470273800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470273821) 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, 8108141 + ... + 8108198.

It is an arithmetic number, because the mean of its divisors is an integer number (121622550).

Almost surely, 2470273831 is an apocalyptic number.

470273831 is a deficient number, since it is larger than the sum of its proper divisors (16216369).

470273831 is a wasteful number, since it uses less digits than its factorization.

470273831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16216368.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 470273831 is about 21685.7979101531. The cubic root of 470273831 is about 777.6489754958.

The spelling of 470273831 in words is "four hundred seventy million, two hundred seventy-three thousand, eight hundred thirty-one".

Divisors: 1 29 16216339 470273831