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133966 = 2721367
BaseRepresentation
bin100000101101001110
320210202201
4200231032
513241331
62512114
71065400
oct405516
9223681
10133966
1191718
126563a
1348c91
1436b70
1529a61
hex20b4e

133966 has 12 divisors (see below), whose sum is σ = 233928. Its totient is φ = 57372.

The previous prime is 133963. The next prime is 133967. The reversal of 133966 is 669331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 586 + ... + 781.

It is an arithmetic number, because the mean of its divisors is an integer number (19494).

2133966 is an apocalyptic number.

133966 is the 196-th nonagonal number.

133966 is a deficient number, since it is larger than the sum of its proper divisors (99962).

133966 is a wasteful number, since it uses less digits than its factorization.

133966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383 (or 1376 counting only the distinct ones).

The product of its digits is 2916, while the sum is 28.

The square root of 133966 is about 366.0136609472. The cubic root of 133966 is about 51.1679710976.

The spelling of 133966 in words is "one hundred thirty-three thousand, nine hundred sixty-six".

Divisors: 1 2 7 14 49 98 1367 2734 9569 19138 66983 133966