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13945896 = 23321091777
BaseRepresentation
bin110101001100…
…110000101000
3222020112011200
4311030300220
512032232041
61214524200
7226352406
oct65146050
928215150
1013945896
117965838
124806660
132b73913
141bd0476
1513571b6
hexd4cc28

13945896 has 48 divisors (see below), whose sum is σ = 38138100. Its totient is φ = 4603392.

The previous prime is 13945853. The next prime is 13945901. The reversal of 13945896 is 69854931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13793796 + 152100 = 3714^2 + 390^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6960 + ... + 8736.

Almost surely, 213945896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13945896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19069050).

13945896 is an abundant number, since it is smaller than the sum of its proper divisors (24192204).

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

13945896 is a wasteful number, since it uses less digits than its factorization.

13945896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898 (or 1891 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 13945896 is about 3734.4204369621. The cubic root of 13945896 is about 240.7033533782.

It can be divided in two parts, 13945 and 896, that added together give a palindrome (14841).

The spelling of 13945896 in words is "thirteen million, nine hundred forty-five thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 109 218 327 436 654 872 981 1308 1777 1962 2616 3554 3924 5331 7108 7848 10662 14216 15993 21324 31986 42648 63972 127944 193693 387386 581079 774772 1162158 1549544 1743237 2324316 3486474 4648632 6972948 13945896