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404894701 = 2416412621
BaseRepresentation
bin11000001000100…
…011001111101101
31001012212210010001
4120020203033231
51312123112301
6104102144301
713014356011
oct3010431755
91035783101
10404894701
11198609422
12b3722091
1365b66483
143baba541
152582dc01
hex182233ed

404894701 has 8 divisors (see below), whose sum is σ = 407364408. Its totient is φ = 402432000.

The previous prime is 404894687. The next prime is 404894773. The reversal of 404894701 is 107498404.

It can be written as a sum of positive squares in 4 ways, for example, as 262116100 + 142778601 = 16190^2 + 11949^2 .

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 404894701 - 213 = 404886509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404894101) 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, 153171 + ... + 155791.

It is an arithmetic number, because the mean of its divisors is an integer number (50920551).

Almost surely, 2404894701 is an apocalyptic number.

It is an amenable number.

404894701 is a deficient number, since it is larger than the sum of its proper divisors (2469707).

404894701 is a wasteful number, since it uses less digits than its factorization.

404894701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 404894701 is about 20121.9954527378. The cubic root of 404894701 is about 739.7994958363.

The spelling of 404894701 in words is "four hundred four million, eight hundred ninety-four thousand, seven hundred one".

Divisors: 1 241 641 2621 154481 631661 1680061 404894701