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13609962 = 2321779563
BaseRepresentation
bin110011111010…
…101111101010
3221121110100200
4303322233222
511441004322
61203413030
7223453122
oct63725752
927543320
1013609962
117756403
124684176
132a86a42
141b43c82
1512dc8ac
hexcfabea

13609962 has 48 divisors (see below), whose sum is σ = 31674240. Its totient is φ = 4208256.

The previous prime is 13609957. The next prime is 13609963. The reversal of 13609962 is 26990631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13609963) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23893 + ... + 24455.

It is an arithmetic number, because the mean of its divisors is an integer number (659880).

Almost surely, 213609962 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13609962, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15837120).

13609962 is an abundant number, since it is smaller than the sum of its proper divisors (18064278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13609962 is a wasteful number, since it uses less digits than its factorization.

13609962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 13609962 is about 3689.1681989305. The cubic root of 13609962 is about 238.7549059233.

It can be divided in two parts, 136099 and 62, that added together give a square (136161 = 3692).

The spelling of 13609962 in words is "thirteen million, six hundred nine thousand, nine hundred sixty-two".

Divisors: 1 2 3 6 9 17 18 34 51 79 102 153 158 237 306 474 563 711 1126 1343 1422 1689 2686 3378 4029 5067 8058 9571 10134 12087 19142 24174 28713 44477 57426 86139 88954 133431 172278 266862 400293 756109 800586 1512218 2268327 4536654 6804981 13609962