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872413 = 2383457
BaseRepresentation
bin11010100111111011101
31122022201121
43110333131
5210404123
630410541
710262323
oct3247735
91568647
10872413
11546503
12360a51
13247129
14189d13
1512375d
hexd4fdd

872413 has 8 divisors (see below), whose sum is σ = 923328. Its totient is φ = 822624.

The previous prime is 872411. The next prime is 872419. The reversal of 872413 is 314278.

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 872413 - 21 = 872411 is a prime.

It is a super-2 number, since 2×8724132 = 1522208885138, 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 (872411) 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, 1681 + ... + 2137.

It is an arithmetic number, because the mean of its divisors is an integer number (115416).

2872413 is an apocalyptic number.

872413 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

872413 is a deficient number, since it is larger than the sum of its proper divisors (50915).

872413 is a wasteful number, since it uses less digits than its factorization.

872413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563.

The product of its digits is 1344, while the sum is 25.

The square root of 872413 is about 934.0305134202. The cubic root of 872413 is about 95.5522041270.

It can be divided in two parts, 87 and 2413, that added together give a square (2500 = 502).

The spelling of 872413 in words is "eight hundred seventy-two thousand, four hundred thirteen".

Divisors: 1 23 83 457 1909 10511 37931 872413