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13899124 = 223793913
BaseRepresentation
bin110101000001…
…010101110100
3222011011000101
4311001111310
512024232444
61213523444
7226066141
oct65012564
928134011
1013899124
117933688
1247a3584
132b58545
141bbb3c8
1513483d4
hexd41574

13899124 has 12 divisors (see below), whose sum is σ = 24981124. Its totient is φ = 6761664.

The previous prime is 13899079. The next prime is 13899131. The reversal of 13899124 is 42199831.

It can be written as a sum of positive squares in 2 ways, for example, as 11009124 + 2890000 = 3318^2 + 1700^2 .

It is a super-3 number, since 3×138991243 (a number of 22 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46809 + ... + 47104.

Almost surely, 213899124 is an apocalyptic number.

It is an amenable number.

13899124 is a deficient number, since it is larger than the sum of its proper divisors (11082000).

13899124 is a wasteful number, since it uses less digits than its factorization.

13899124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93954 (or 93952 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 13899124 is about 3728.1528938604. The cubic root of 13899124 is about 240.4339602246.

The spelling of 13899124 in words is "thirteen million, eight hundred ninety-nine thousand, one hundred twenty-four".

Divisors: 1 2 4 37 74 148 93913 187826 375652 3474781 6949562 13899124