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470494781 = 3152129131
BaseRepresentation
bin11100000010110…
…010111000111101
31012210022121111122
4130002302320331
51430421313111
6114404200325
714442065621
oct3402627075
91183277448
10470494781
11221644769
121116990a5
13766243a3
14466b5181
152b48acdb
hex1c0b2e3d

470494781 has 8 divisors (see below), whose sum is σ = 486620928. Its totient is φ = 454428000.

The previous prime is 470494747. The next prime is 470494789. The reversal of 470494781 is 187494074.

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

It is a cyclic number.

It is not a de Polignac number, because 470494781 - 222 = 466300477 is a prime.

It is a super-2 number, since 2×4704947812 = 442730677896475922, 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 (470494789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1586 + ... + 30716.

It is an arithmetic number, because the mean of its divisors is an integer number (60827616).

Almost surely, 2470494781 is an apocalyptic number.

It is an amenable number.

470494781 is a deficient number, since it is larger than the sum of its proper divisors (16126147).

470494781 is a wasteful number, since it uses less digits than its factorization.

470494781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29683.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 470494781 is about 21690.8916598650. The cubic root of 470494781 is about 777.7707447202.

The spelling of 470494781 in words is "four hundred seventy million, four hundred ninety-four thousand, seven hundred eighty-one".

Divisors: 1 31 521 16151 29131 903061 15177251 470494781