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133333023031 = 1322909271211
BaseRepresentation
bin111110000101101000…
…1000111100100110111
3110202011012121100200021
41330023101013210313
54141031223214111
6141130301230011
712430054665445
oct1741321074467
9422135540607
10133333023031
115160101971a
1221a10b62307
13c75b579b00
14664bdddb95
15370578ad71
hex1f0b447937

133333023031 has 12 divisors (see below), whose sum is σ = 144428526360. Its totient is φ = 123033874080.

The previous prime is 133333023023. The next prime is 133333023037. The reversal of 133333023031 is 130320333331.

It is not a de Polignac number, because 133333023031 - 23 = 133333023023 is a prime.

It is a super-2 number, since 2×1333330230312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133333022987 and 133333023005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133333023037) 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, 356016 + ... + 627226.

It is an arithmetic number, because the mean of its divisors is an integer number (12035710530).

Almost surely, 2133333023031 is an apocalyptic number.

133333023031 is a deficient number, since it is larger than the sum of its proper divisors (11095503329).

133333023031 is a wasteful number, since it uses less digits than its factorization.

133333023031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274146 (or 274133 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 25.

Adding to 133333023031 its reverse (130320333331), we get a palindrome (263653356362).

The spelling of 133333023031 in words is "one hundred thirty-three billion, three hundred thirty-three million, twenty-three thousand, thirty-one".

Divisors: 1 13 169 2909 37817 271211 491621 3525743 45834659 788952799 10256386387 133333023031