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13642088 = 231739857
BaseRepresentation
bin110100000010…
…100101101000
3221200002102112
4310002211220
511443021323
61204221452
7223645565
oct64024550
927602375
1013642088
117778559
12469a888
132a98555
141b5186c
1512e7178
hexd02968

13642088 has 16 divisors (see below), whose sum is σ = 25729380. Its totient is φ = 6780928.

The previous prime is 13642087. The next prime is 13642091. The reversal of 13642088 is 88024631.

It can be written as a sum of positive squares in 2 ways, for example, as 13235044 + 407044 = 3638^2 + 638^2 .

It is a super-2 number, since 2×136420882 = 372213129999488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13642087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3545 + ... + 6312.

Almost surely, 213642088 is an apocalyptic number.

It is an amenable number.

13642088 is a deficient number, since it is larger than the sum of its proper divisors (12087292).

13642088 is a wasteful number, since it uses less digits than its factorization.

13642088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10036 (or 10032 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 13642088 is about 3693.5197305551. The cubic root of 13642088 is about 238.9426167797.

It can be divided in two parts, 136 and 42088, that added together give a palindrome (42224).

The spelling of 13642088 in words is "thirteen million, six hundred forty-two thousand, eighty-eight".

Divisors: 1 2 4 8 173 346 692 1384 9857 19714 39428 78856 1705261 3410522 6821044 13642088