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133801093 = 165780749
BaseRepresentation
bin1111111100110…
…10010010000101
3100022202210121001
413332122102011
5233223113333
621135453301
73213201436
oct776322205
9308683531
10133801093
1169588818
1238987231
132194995a
1413aad48d
15bb2eb7d
hex7f9a485

133801093 has 4 divisors (see below), whose sum is σ = 133883500. Its totient is φ = 133718688.

The previous prime is 133801091. The next prime is 133801111. The reversal of 133801093 is 390108331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 390108331 = 2473157747.

It can be written as a sum of positive squares in 2 ways, for example, as 90003169 + 43797924 = 9487^2 + 6618^2 .

It is a cyclic number.

It is not a de Polignac number, because 133801093 - 21 = 133801091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133801091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38718 + ... + 42031.

It is an arithmetic number, because the mean of its divisors is an integer number (33470875).

Almost surely, 2133801093 is an apocalyptic number.

It is an amenable number.

133801093 is a deficient number, since it is larger than the sum of its proper divisors (82407).

133801093 is an equidigital number, since it uses as much as digits as its factorization.

133801093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82406.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 133801093 is about 11567.2422383211. The cubic root of 133801093 is about 511.4696720793.

The spelling of 133801093 in words is "one hundred thirty-three million, eight hundred one thousand, ninety-three".

Divisors: 1 1657 80749 133801093