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13691060 = 2255571229
BaseRepresentation
bin110100001110…
…100010110100
3221202120121022
4310032202310
512001103220
61205240312
7224241425
oct64164264
927676538
1013691060
117801329
124703098
132ab4926
141b6564c
151306925
hexd0e8b4

13691060 has 24 divisors (see below), whose sum is σ = 28826280. Its totient is φ = 5462144.

The previous prime is 13691033. The next prime is 13691107. The reversal of 13691060 is 6019631.

It can be written as a sum of positive squares in 4 ways, for example, as 2226064 + 11464996 = 1492^2 + 3386^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10526 + ... + 11754.

It is an arithmetic number, because the mean of its divisors is an integer number (1201095).

Almost surely, 213691060 is an apocalyptic number.

13691060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13691060 is an abundant number, since it is smaller than the sum of its proper divisors (15135220).

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

13691060 is a wasteful number, since it uses less digits than its factorization.

13691060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795 (or 1793 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 13691060 is about 3700.1432404706. The cubic root of 13691060 is about 239.2281919248.

The spelling of 13691060 in words is "thirteen million, six hundred ninety-one thousand, sixty".

Divisors: 1 2 4 5 10 20 557 1114 1229 2228 2458 2785 4916 5570 6145 11140 12290 24580 684553 1369106 2738212 3422765 6845530 13691060