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13124444 = 2223142657
BaseRepresentation
bin110010000100…
…001101011100
3220200210100112
4302010031130
511324440234
61145145152
7216361454
oct62041534
926623315
1013124444
117454653
12448b1b8
132946a58
141a58d64
151243ace
hexc8435c

13124444 has 12 divisors (see below), whose sum is σ = 23966544. Its totient is φ = 6276864.

The previous prime is 13124437. The next prime is 13124483. The reversal of 13124444 is 44442131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

13124444 is a modest number, since divided by 4444 gives 1312 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71237 + ... + 71420.

It is an arithmetic number, because the mean of its divisors is an integer number (1997212).

Almost surely, 213124444 is an apocalyptic number.

It is an amenable number.

13124444 is a deficient number, since it is larger than the sum of its proper divisors (10842100).

13124444 is a wasteful number, since it uses less digits than its factorization.

13124444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142684 (or 142682 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 13124444 is about 3622.7674504445. The cubic root of 13124444 is about 235.8813681271.

Adding to 13124444 its reverse (44442131), we get a palindrome (57566575).

The spelling of 13124444 in words is "thirteen million, one hundred twenty-four thousand, four hundred forty-four".

Divisors: 1 2 4 23 46 92 142657 285314 570628 3281111 6562222 13124444