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132805690 = 2573917971
BaseRepresentation
bin1111110101001…
…11010000111010
3100020220020011021
413322213100322
5232444240230
621102253054
73201554413
oct772472072
9306806137
10132805690
1168a68976
123858718a
132168b864
14138d080a
15b9d4c7a
hex7ea743a

132805690 has 16 divisors (see below), whose sum is σ = 239387040. Its totient is φ = 53047440.

The previous prime is 132805679. The next prime is 132805693. The reversal of 132805690 is 96508231.

It is a super-2 number, since 2×1328056902 = 35274702592752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (132805693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1596 + ... + 16375.

It is an arithmetic number, because the mean of its divisors is an integer number (14961690).

Almost surely, 2132805690 is an apocalyptic number.

132805690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

132805690 is a deficient number, since it is larger than the sum of its proper divisors (106581350).

132805690 is a wasteful number, since it uses less digits than its factorization.

132805690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18717.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 132805690 is about 11524.1351085450. The cubic root of 132805690 is about 510.1981672545.

The spelling of 132805690 in words is "one hundred thirty-two million, eight hundred five thousand, six hundred ninety".

Divisors: 1 2 5 10 739 1478 3695 7390 17971 35942 89855 179710 13280569 26561138 66402845 132805690