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13479145 = 512721227
BaseRepresentation
bin110011011010…
…110011101001
3221100210220121
4303122303221
511422313040
61200523241
7222366541
oct63326351
927323817
1013479145
117677099
124620521
132a3c334
141b0c321
1512b3c4a
hexcdace9

13479145 has 8 divisors (see below), whose sum is σ = 16303104. Its totient is φ = 10697904.

The previous prime is 13479143. The next prime is 13479163. The reversal of 13479145 is 54197431.

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

It is a cyclic number.

It is not a de Polignac number, because 13479145 - 21 = 13479143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13479145.

It is not an unprimeable number, because it can be changed into a prime (13479143) 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, 9979 + ... + 11248.

It is an arithmetic number, because the mean of its divisors is an integer number (2037888).

Almost surely, 213479145 is an apocalyptic number.

It is an amenable number.

13479145 is a deficient number, since it is larger than the sum of its proper divisors (2823959).

13479145 is a wasteful number, since it uses less digits than its factorization.

13479145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21359.

The product of its digits is 15120, while the sum is 34.

The square root of 13479145 is about 3671.3955112464. The cubic root of 13479145 is about 237.9874825703.

The spelling of 13479145 in words is "thirteen million, four hundred seventy-nine thousand, one hundred forty-five".

Divisors: 1 5 127 635 21227 106135 2695829 13479145