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13381417 = 74789457
BaseRepresentation
bin110011000010…
…111100101001
3221011211212001
4303002330221
511411201132
61154451001
7221511610
oct63027451
927154761
1013381417
11760a725
124593a61
132a069ca
141ac4877
151294ce7
hexcc2f29

13381417 has 16 divisors (see below), whose sum is σ = 15828480. Its totient is φ = 11075328.

The previous prime is 13381399. The next prime is 13381421. The reversal of 13381417 is 71418331.

13381417 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13381417 - 27 = 13381289 is a prime.

It is a Duffinian number.

13381417 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (13381427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29053 + ... + 29509.

It is an arithmetic number, because the mean of its divisors is an integer number (989280).

Almost surely, 213381417 is an apocalyptic number.

It is an amenable number.

13381417 is a deficient number, since it is larger than the sum of its proper divisors (2447063).

13381417 is an equidigital number, since it uses as much as digits as its factorization.

13381417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

The product of its digits is 2016, while the sum is 28.

The square root of 13381417 is about 3658.0619185574. The cubic root of 13381417 is about 237.4109257844.

Adding to 13381417 its reverse (71418331), we get a palindrome (84799748).

The spelling of 13381417 in words is "thirteen million, three hundred eighty-one thousand, four hundred seventeen".

Divisors: 1 7 47 89 329 457 623 3199 4183 21479 29281 40673 150353 284711 1911631 13381417