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812957038 = 22331744543
BaseRepresentation
bin110000011101001…
…011110101101110
32002122201111101221
4300131023311232
53131104111123
6212400253554
726101010065
oct6035136556
92078644357
10812957038
11387990723
121a83112ba
13cc56b68a
1479d7d1dc
154b58625d
hex3074bd6e

812957038 has 8 divisors (see below), whose sum is σ = 1224669888. Its totient is φ = 404733744.

The previous prime is 812957027. The next prime is 812957039. The reversal of 812957038 is 830759218.

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

It is a junction number, because it is equal to n+sod(n) for n = 812956985 and 812957003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812957039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871806 + ... + 872737.

It is an arithmetic number, because the mean of its divisors is an integer number (153083736).

Almost surely, 2812957038 is an apocalyptic number.

812957038 is a deficient number, since it is larger than the sum of its proper divisors (411712850).

812957038 is a wasteful number, since it uses less digits than its factorization.

812957038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744778.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 812957038 is about 28512.4014772520. The cubic root of 812957038 is about 933.3027204528.

The spelling of 812957038 in words is "eight hundred twelve million, nine hundred fifty-seven thousand, thirty-eight".

Divisors: 1 2 233 466 1744543 3489086 406478519 812957038