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133793442 = 23210769467
BaseRepresentation
bin1111111100110…
…00011010100010
3100022202102002200
413332120122202
5233222342232
621135354030
73213140226
oct776303242
9308672080
10133793442
1169582aa2
1238982916
1321946323
1413aaa786
15bb2c77c
hex7f986a2

133793442 has 24 divisors (see below), whose sum is σ = 292599216. Its totient is φ = 44180376.

The previous prime is 133793441. The next prime is 133793449. The reversal of 133793442 is 244397331.

It is a junction number, because it is equal to n+sod(n) for n = 133793397 and 133793406.

It is not an unprimeable number, because it can be changed into a prime (133793441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32808 + ... + 36659.

It is an arithmetic number, because the mean of its divisors is an integer number (12191634).

Almost surely, 2133793442 is an apocalyptic number.

133793442 is an abundant number, since it is smaller than the sum of its proper divisors (158805774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133793442 is a wasteful number, since it uses less digits than its factorization.

133793442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69582 (or 69579 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 133793442 is about 11566.9115151798. The cubic root of 133793442 is about 511.4599229585.

The spelling of 133793442 in words is "one hundred thirty-three million, seven hundred ninety-three thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 107 214 321 642 963 1926 69467 138934 208401 416802 625203 1250406 7432969 14865938 22298907 44597814 66896721 133793442