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133923106 = 2891734349
BaseRepresentation
bin1111111101110…
…00000100100010
3100022222222222001
413332320010202
5233241014411
621142234214
73214220242
oct776700442
9308888861
10133923106
1169661459
1238a2596a
1321990355
1413b01b22
15bb55dc1
hex7fb8122

133923106 has 16 divisors (see below), whose sum is σ = 204363000. Its totient is φ = 65811328.

The previous prime is 133923067. The next prime is 133923107. The reversal of 133923106 is 601329331.

It can be written as a sum of positive squares in 4 ways, for example, as 86657481 + 47265625 = 9309^2 + 6875^2 .

It is not an unprimeable number, because it can be changed into a prime (133923107) 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, 28620 + ... + 32968.

Almost surely, 2133923106 is an apocalyptic number.

133923106 is a deficient number, since it is larger than the sum of its proper divisors (70439894).

133923106 is a wasteful number, since it uses less digits than its factorization.

133923106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613.

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

The square root of 133923106 is about 11572.5151112453. The cubic root of 133923106 is about 511.6250943010.

The spelling of 133923106 in words is "one hundred thirty-three million, nine hundred twenty-three thousand, one hundred six".

Divisors: 1 2 89 173 178 346 4349 8698 15397 30794 387061 752377 774122 1504754 66961553 133923106