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814903379 = 6783146539
BaseRepresentation
bin110000100100100…
…111000001010011
32002210101101021122
4300210213001103
53132103402004
6212510112455
726123364413
oct6044470123
92083341248
10814903379
11388a9aa74
121a8aab72b
13ccaa0564
147a328643
154b81ccbe
hex30927053

814903379 has 8 divisors (see below), whose sum is σ = 837036480. Its totient is φ = 793063656.

The previous prime is 814903357. The next prime is 814903421. The reversal of 814903379 is 973309418.

It is a happy number.

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 814903379 - 28 = 814903123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (814903079) 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, 67709 + ... + 78830.

It is an arithmetic number, because the mean of its divisors is an integer number (104629560).

Almost surely, 2814903379 is an apocalyptic number.

814903379 is a deficient number, since it is larger than the sum of its proper divisors (22133101).

814903379 is a wasteful number, since it uses less digits than its factorization.

814903379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146689.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 814903379 is about 28546.5125540757. The cubic root of 814903379 is about 934.0469490375.

The spelling of 814903379 in words is "eight hundred fourteen million, nine hundred three thousand, three hundred seventy-nine".

Divisors: 1 67 83 5561 146539 9818113 12162737 814903379