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10813998 = 2313138641
BaseRepresentation
bin101001010000…
…001000101110
3202100102000110
4221100020232
510232021443
61023440450
7160626456
oct51201056
922312013
1010813998
116116798
123756126
132318220
141616d66
15e39233
hexa5022e

10813998 has 16 divisors (see below), whose sum is σ = 23291856. Its totient is φ = 3327360.

The previous prime is 10813981. The next prime is 10814017. The reversal of 10813998 is 89931801.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69243 + ... + 69398.

It is an arithmetic number, because the mean of its divisors is an integer number (1455741).

Almost surely, 210813998 is an apocalyptic number.

10813998 is an abundant number, since it is smaller than the sum of its proper divisors (12477858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10813998 is a wasteful number, since it uses less digits than its factorization.

10813998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138659.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 10813998 is about 3288.4643832646. The cubic root of 10813998 is about 221.1373469725.

It can be divided in two parts, 10813 and 998, that added together give a palindrome (11811).

The spelling of 10813998 in words is "ten million, eight hundred thirteen thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 13 26 39 78 138641 277282 415923 831846 1802333 3604666 5406999 10813998