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13898835 = 325734231
BaseRepresentation
bin110101000001…
…010001010011
3222011010121200
4311001101103
512024230320
61213522243
7226065246
oct65012123
928133550
1013898835
117933445
1247a3383
132b58382
141bbb25d
151348290
hexd41453

13898835 has 24 divisors (see below), whose sum is σ = 24427104. Its totient is φ = 7309440.

The previous prime is 13898827. The next prime is 13898837. The reversal of 13898835 is 53889831.

13898835 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13898835 - 23 = 13898827 is a prime.

It is a super-2 number, since 2×138988352 = 386355228714450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (13898837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1170 + ... + 5400.

It is an arithmetic number, because the mean of its divisors is an integer number (1017796).

Almost surely, 213898835 is an apocalyptic number.

13898835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13898835 is a deficient number, since it is larger than the sum of its proper divisors (10528269).

13898835 is a wasteful number, since it uses less digits than its factorization.

13898835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315 (or 4312 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 13898835 is about 3728.1141345190. The cubic root of 13898835 is about 240.4322937911.

The spelling of 13898835 in words is "thirteen million, eight hundred ninety-eight thousand, eight hundred thirty-five".

Divisors: 1 3 5 9 15 45 73 219 365 657 1095 3285 4231 12693 21155 38079 63465 190395 308863 926589 1544315 2779767 4632945 13898835