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133031202013 = 995631336151
BaseRepresentation
bin111101111100101000…
…1110000110011011101
3110201101011200021002001
41323321101300303131
54134421441431023
6141040320202301
712416431363003
oct1737121606335
9421334607061
10133031202013
1151466711066
1221947a69391
13c710b921a8
14661dcb4a73
1536d901c6ad
hex1ef9470cdd

133031202013 has 4 divisors (see below), whose sum is σ = 133032637728. Its totient is φ = 133029766300.

The previous prime is 133031202011. The next prime is 133031202053. The reversal of 133031202013 is 310202130331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133031202013 - 21 = 133031202011 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 (133031202011) 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, 568513 + ... + 767638.

It is an arithmetic number, because the mean of its divisors is an integer number (33258159432).

Almost surely, 2133031202013 is an apocalyptic number.

It is an amenable number.

133031202013 is a deficient number, since it is larger than the sum of its proper divisors (1435715).

133031202013 is an equidigital number, since it uses as much as digits as its factorization.

133031202013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435714.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 133031202013 its reverse (310202130331), we get a palindrome (443233332344).

The spelling of 133031202013 in words is "one hundred thirty-three billion, thirty-one million, two hundred two thousand, thirteen".

Divisors: 1 99563 1336151 133031202013