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133683031 = 1913675147
BaseRepresentation
bin1111111011111…
…01011101010111
3100022112210122101
413331331131113
5233210324111
621133142531
73212200306
oct775753527
9308483571
10133683031
1169508049
123892aa47
1321907cb1
1413a7c43d
15bb09bc1
hex7f7d757

133683031 has 8 divisors (see below), whose sum is σ = 140849280. Its totient is φ = 126529848.

The previous prime is 133683007. The next prime is 133683041. The reversal of 133683031 is 130386331.

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 133683031 - 29 = 133682519 is a prime.

It is a super-2 number, since 2×1336830312 = 35742305554693922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133683041) 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, 23400 + ... + 28546.

It is an arithmetic number, because the mean of its divisors is an integer number (17606160).

Almost surely, 2133683031 is an apocalyptic number.

133683031 is a deficient number, since it is larger than the sum of its proper divisors (7166249).

133683031 is a wasteful number, since it uses less digits than its factorization.

133683031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6533.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 133683031 is about 11562.1378213547. The cubic root of 133683031 is about 511.3191927361.

The spelling of 133683031 in words is "one hundred thirty-three million, six hundred eighty-three thousand, thirty-one".

Divisors: 1 19 1367 5147 25973 97793 7035949 133683031