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13642952 = 231705369
BaseRepresentation
bin110100000010…
…110011001000
3221200010121112
4310002303020
511443033302
61204225452
7223651241
oct64026310
927603545
1013642952
117779174
12469b288
132a98a6b
141b51cc8
1512e7552
hexd02cc8

13642952 has 8 divisors (see below), whose sum is σ = 25580550. Its totient is φ = 6821472.

The previous prime is 13642943. The next prime is 13642957. The reversal of 13642952 is 25924631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12630916 + 1012036 = 3554^2 + 1006^2 .

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

It is a super-2 number, since 2×136429522 = 372260278548608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13642957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 852677 + ... + 852692.

Almost surely, 213642952 is an apocalyptic number.

It is an amenable number.

13642952 is a deficient number, since it is larger than the sum of its proper divisors (11937598).

13642952 is a wasteful number, since it uses less digits than its factorization.

13642952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705375 (or 1705371 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 13642952 is about 3693.6366903094. The cubic root of 13642952 is about 238.9476610238.

The spelling of 13642952 in words is "thirteen million, six hundred forty-two thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 1705369 3410738 6821476 13642952