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13442152 = 231680269
BaseRepresentation
bin110011010001…
…110001101000
3221021221011111
4303101301220
511420122102
61200040104
7222153643
oct63216150
927257144
1013442152
117651319
124603034
132a28549
141adca5a
1512a7cd7
hexcd1c68

13442152 has 8 divisors (see below), whose sum is σ = 25204050. Its totient is φ = 6721072.

The previous prime is 13442131. The next prime is 13442153. The reversal of 13442152 is 25124431.

It can be written as a sum of positive squares in only one way, i.e., 13205956 + 236196 = 3634^2 + 486^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×134421522 = 361382900782208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13442153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840127 + ... + 840142.

Almost surely, 213442152 is an apocalyptic number.

It is an amenable number.

13442152 is a deficient number, since it is larger than the sum of its proper divisors (11761898).

13442152 is a wasteful number, since it uses less digits than its factorization.

13442152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680275 (or 1680271 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 13442152 is about 3666.3540472791. The cubic root of 13442152 is about 237.7695672349.

Adding to 13442152 its reverse (25124431), we get a palindrome (38566583).

The spelling of 13442152 in words is "thirteen million, four hundred forty-two thousand, one hundred fifty-two".

Divisors: 1 2 4 8 1680269 3360538 6721076 13442152