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133130572 = 22137379641
BaseRepresentation
bin1111110111101…
…10100101001100
3100021111201210221
413323312211030
5233040134242
621113241124
73204406531
oct773664514
9307451727
10133130572
116916aa73
12387031a4
13217736b3
1413976d88
15ba4b167
hex7ef694c

133130572 has 24 divisors (see below), whose sum is σ = 235665360. Its totient is φ = 65802240.

The previous prime is 133130539. The next prime is 133130573. The reversal of 133130572 is 275031331.

It is not an unprimeable number, because it can be changed into a prime (133130573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207372 + ... + 208012.

It is an arithmetic number, because the mean of its divisors is an integer number (9819390).

Almost surely, 2133130572 is an apocalyptic number.

It is an amenable number.

133130572 is a deficient number, since it is larger than the sum of its proper divisors (102534788).

133130572 is a wasteful number, since it uses less digits than its factorization.

133130572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161 (or 1159 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 133130572 is about 11538.2222200823. Note that the first 5 decimals coincide. The cubic root of 133130572 is about 510.6138603449.

The spelling of 133130572 in words is "one hundred thirty-three million, one hundred thirty thousand, five hundred seventy-two".

Divisors: 1 2 4 137 274 379 548 641 758 1282 1516 2564 51923 87817 103846 175634 207692 242939 351268 485878 971756 33282643 66565286 133130572