Search a number
-
+
13947080 = 235749811
BaseRepresentation
bin110101001101…
…000011001000
3222020120210112
4311031003020
512032301310
61214533452
7226356020
oct65150310
928216715
1013947080
117966714
124807288
132b74314
141bd0a80
151357705
hexd4d0c8

13947080 has 32 divisors (see below), whose sum is σ = 35864640. Its totient is φ = 4781760.

The previous prime is 13947067. The next prime is 13947103. The reversal of 13947080 is 8074931.

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, 24626 + ... + 25185.

It is an arithmetic number, because the mean of its divisors is an integer number (1120770).

Almost surely, 213947080 is an apocalyptic number.

13947080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13947080 is an abundant number, since it is smaller than the sum of its proper divisors (21917560).

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

13947080 is a wasteful number, since it uses less digits than its factorization.

13947080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49829 (or 49825 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 13947080 is about 3734.5789588654. The cubic root of 13947080 is about 240.7101650525.

The spelling of 13947080 in words is "thirteen million, nine hundred forty-seven thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 49811 99622 199244 249055 348677 398488 498110 697354 996220 1394708 1743385 1992440 2789416 3486770 6973540 13947080