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133131031332 = 223133832228209
BaseRepresentation
bin111101111111100111…
…0100101001100100100
3110201122010112010011020
41323333032211030210
54140123021000312
6141054244011140
712422053044405
oct1737716451444
9421563463136
10133131031332
1151507aa6332
1221975390ab0
13c7287760b0
14662d25d9ac
1536e2b8b78c
hex1eff3a5324

133131031332 has 48 divisors (see below), whose sum is σ = 335407994880. Its totient is φ = 40856421888.

The previous prime is 133131031331. The next prime is 133131031337. The reversal of 133131031332 is 233130131331.

It is not an unprimeable number, because it can be changed into a prime (133131031331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054357 + ... + 1173852.

It is an arithmetic number, because the mean of its divisors is an integer number (6987666560).

Almost surely, 2133131031332 is an apocalyptic number.

133131031332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133131031332 is an abundant number, since it is smaller than the sum of its proper divisors (202276963548).

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

133131031332 is a wasteful number, since it uses less digits than its factorization.

133131031332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228612 (or 2228610 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 133131031332 its reverse (233130131331), we get a palindrome (366261162663).

Subtracting 133131031332 from its reverse (233130131331), we obtain a palindrome (99999099999).

The spelling of 133131031332 in words is "one hundred thirty-three billion, one hundred thirty-one million, thirty-one thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 383 766 1149 1532 2298 4596 4979 9958 14937 19916 29874 59748 2228209 4456418 6684627 8912836 13369254 26738508 28966717 57933434 86900151 115866868 173800302 347600604 853404047 1706808094 2560212141 3413616188 5120424282 10240848564 11094252611 22188505222 33282757833 44377010444 66565515666 133131031332