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13898829 = 37661849
BaseRepresentation
bin110101000001…
…010001001101
3222011010121110
4311001101031
512024230304
61213522233
7226065240
oct65012115
928133543
1013898829
11793343a
1247a3379
132b58379
141bbb257
151348289
hexd4144d

13898829 has 8 divisors (see below), whose sum is σ = 21179200. Its totient is φ = 7942176.

The previous prime is 13898827. The next prime is 13898837. The reversal of 13898829 is 92889831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13898829 - 21 = 13898827 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13898827) 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, 330904 + ... + 330945.

It is an arithmetic number, because the mean of its divisors is an integer number (2647400).

Almost surely, 213898829 is an apocalyptic number.

It is an amenable number.

13898829 is a deficient number, since it is larger than the sum of its proper divisors (7280371).

13898829 is an equidigital number, since it uses as much as digits as its factorization.

13898829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661859.

The product of its digits is 248832, while the sum is 48.

The square root of 13898829 is about 3728.1133298225. The cubic root of 13898829 is about 240.4322591937.

The spelling of 13898829 in words is "thirteen million, eight hundred ninety-eight thousand, eight hundred twenty-nine".

Divisors: 1 3 7 21 661849 1985547 4632943 13898829