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13392290 = 251339229
BaseRepresentation
bin110011000101…
…100110100010
3221012101202202
4303011212202
511412023130
61155013202
7221555402
oct63054642
927171682
1013392290
11761790a
12459a202
132a0b942
141ac8802
151298145
hexcc59a2

13392290 has 8 divisors (see below), whose sum is σ = 24106140. Its totient is φ = 5356912.

The previous prime is 13392263. The next prime is 13392293. The reversal of 13392290 is 9229331.

It can be written as a sum of positive squares in 2 ways, for example, as 11771761 + 1620529 = 3431^2 + 1273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13392293) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 669605 + ... + 669624.

Almost surely, 213392290 is an apocalyptic number.

13392290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13392290 is a deficient number, since it is larger than the sum of its proper divisors (10713850).

13392290 is a wasteful number, since it uses less digits than its factorization.

13392290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339236.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 13392290 is about 3659.5477862709. The cubic root of 13392290 is about 237.4752107091.

The spelling of 13392290 in words is "thirteen million, three hundred ninety-two thousand, two hundred ninety".

Divisors: 1 2 5 10 1339229 2678458 6696145 13392290