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133923207 = 3114058279
BaseRepresentation
bin1111111101110…
…00000110000111
3100100000000002210
413332320012013
5233241020312
621142234503
73214220445
oct776700607
9310000083
10133923207
1169661540
1238a25a33
1321990402
1413b01b95
15bb55e3c
hex7fb8187

133923207 has 8 divisors (see below), whose sum is σ = 194797440. Its totient is φ = 81165560.

The previous prime is 133923169. The next prime is 133923217. The reversal of 133923207 is 702329331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133923207 - 210 = 133922183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133923217) 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, 2029107 + ... + 2029172.

It is an arithmetic number, because the mean of its divisors is an integer number (24349680).

Almost surely, 2133923207 is an apocalyptic number.

133923207 is a deficient number, since it is larger than the sum of its proper divisors (60874233).

133923207 is a wasteful number, since it uses less digits than its factorization.

133923207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058293.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 133923207 is about 11572.5194750322. The cubic root of 133923207 is about 511.6252229174.

The spelling of 133923207 in words is "one hundred thirty-three million, nine hundred twenty-three thousand, two hundred seven".

Divisors: 1 3 11 33 4058279 12174837 44641069 133923207