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13497429 = 3112192103
BaseRepresentation
bin110011011111…
…010001010101
3221101201222210
4303133101111
511423404204
61201144033
7222504051
oct63372125
927351883
1013497429
117689900
12462b019
132a4775a
141b14c61
1512b9389
hexcdf455

13497429 has 36 divisors (see below), whose sum is σ = 21079968. Its totient is φ = 7674480.

The previous prime is 13497403. The next prime is 13497443. The reversal of 13497429 is 92479431.

It is not a de Polignac number, because 13497429 - 211 = 13495381 is a prime.

It is a super-2 number, since 2×134974292 = 364361179220082, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13497469) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 130992 + ... + 131094.

Almost surely, 213497429 is an apocalyptic number.

13497429 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13497429 is a deficient number, since it is larger than the sum of its proper divisors (7582539).

13497429 is a wasteful number, since it uses less digits than its factorization.

13497429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 136 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 13497429 is about 3673.8847287306. The cubic root of 13497429 is about 238.0950412500.

It can be divided in two parts, 1349 and 7429, that added together give a palindrome (8778).

The spelling of 13497429 in words is "thirteen million, four hundred ninety-seven thousand, four hundred twenty-nine".

Divisors: 1 3 11 19 33 57 103 121 209 309 361 363 627 1083 1133 1957 2299 3399 3971 5871 6897 11913 12463 21527 37183 37389 43681 64581 111549 131043 236797 409013 710391 1227039 4499143 13497429