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13938269 = 1031311033
BaseRepresentation
bin110101001010…
…111001011101
3222020010201012
4311022321131
512032011034
61214425005
7226321232
oct65127135
928203635
1013938269
117960034
124802165
132b702c7
141bcb789
151354cce
hexd4ae5d

13938269 has 8 divisors (see below), whose sum is σ = 14194752. Its totient is φ = 13684320.

The previous prime is 13938257. The next prime is 13938271. The reversal of 13938269 is 96283931.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13938269 is a prime.

It is a super-2 number, since 2×139382692 = 388550685432722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13938209) 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, 12977 + ... + 14009.

It is an arithmetic number, because the mean of its divisors is an integer number (1774344).

Almost surely, 213938269 is an apocalyptic number.

It is an amenable number.

13938269 is a deficient number, since it is larger than the sum of its proper divisors (256483).

13938269 is a wasteful number, since it uses less digits than its factorization.

13938269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its digits is 69984, while the sum is 41.

The square root of 13938269 is about 3733.3991214442. The cubic root of 13938269 is about 240.6594652156.

The spelling of 13938269 in words is "thirteen million, nine hundred thirty-eight thousand, two hundred sixty-nine".

Divisors: 1 103 131 1033 13493 106399 135323 13938269