Search a number
-
+
13400006680 = 2353110806457
BaseRepresentation
bin11000111101011001…
…11110000000011000
31021120212110212110201
430132230332000120
5204420400203210
610053400351544
7653031114604
oct143654760030
937525425421
1013400006680
115756a55395
12271b7755b4
131357216348
14911932504
1553661753a
hex31eb3e018

13400006680 has 32 divisors (see below), whose sum is σ = 31122599040. Its totient is φ = 5187098880.

The previous prime is 13400006657. The next prime is 13400006681. The reversal of 13400006680 is 8660000431.

It is a super-5 number, since 5×134000066805 (a number of 52 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400006681) 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, 5401989 + ... + 5404468.

It is an arithmetic number, because the mean of its divisors is an integer number (972581220).

Almost surely, 213400006680 is an apocalyptic number.

13400006680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13400006680 is an abundant number, since it is smaller than the sum of its proper divisors (17722592360).

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

13400006680 is a wasteful number, since it uses less digits than its factorization.

13400006680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10806499 (or 10806495 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 13400006680 in words is "thirteen billion, four hundred million, six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 10806457 21612914 43225828 54032285 86451656 108064570 216129140 335000167 432258280 670000334 1340000668 1675000835 2680001336 3350001670 6700003340 13400006680