Search a number
-
+
13355388 = 2233123661
BaseRepresentation
bin110010111100…
…100101111100
3221010112011000
4302330211330
511404333023
61154130300
7221342664
oct62744574
927115130
1013355388
1175a2112
124580990
1329c7bc7
141ab91a4
15128c243
hexcbc97c

13355388 has 24 divisors (see below), whose sum is σ = 34625360. Its totient is φ = 4451760.

The previous prime is 13355371. The next prime is 13355393. The reversal of 13355388 is 88355331.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61723 + ... + 61938.

Almost surely, 213355388 is an apocalyptic number.

13355388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13355388 is an abundant number, since it is smaller than the sum of its proper divisors (21269972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13355388 is a wasteful number, since it uses less digits than its factorization.

13355388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123674 (or 123666 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 13355388 is about 3654.5024285120. The cubic root of 13355388 is about 237.2568917716.

The spelling of 13355388 in words is "thirteen million, three hundred fifty-five thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 123661 247322 370983 494644 741966 1112949 1483932 2225898 3338847 4451796 6677694 13355388