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13833157 = 13281853
BaseRepresentation
bin110100110001…
…001111000101
3222000210112011
4310301033011
512020130112
61212254221
7225402622
oct64611705
928023464
1013833157
117899068
124771371
132b34500
141ba1349
151333aa7
hexd313c5

13833157 has 6 divisors (see below), whose sum is σ = 14979282. Its totient is φ = 12768912.

The previous prime is 13833139. The next prime is 13833179. The reversal of 13833157 is 75133831.

It is a happy number.

13833157 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 829921 + 13003236 = 911^2 + 3606^2 .

It is not a de Polignac number, because 13833157 - 215 = 13800389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13833187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40758 + ... + 41095.

It is an arithmetic number, because the mean of its divisors is an integer number (2496547).

Almost surely, 213833157 is an apocalyptic number.

It is an amenable number.

13833157 is a deficient number, since it is larger than the sum of its proper divisors (1146125).

13833157 is an equidigital number, since it uses as much as digits as its factorization.

13833157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81879 (or 81866 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 13833157 is about 3719.2952289379. The cubic root of 13833157 is about 240.0529802019.

Adding to 13833157 its reverse (75133831), we get a palindrome (88966988).

The spelling of 13833157 in words is "thirteen million, eight hundred thirty-three thousand, one hundred fifty-seven".

Divisors: 1 13 169 81853 1064089 13833157