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33012413231 = 726591022341
BaseRepresentation
bin11110101111101100…
…010111001100101111
310011012200200100110112
4132233230113030233
51020102134210411
623055442330235
72246035611500
oct365754271457
9104180610415
1033012413231
1113000712746
12649395997b
133161504735
141852562ba7
15cd3320b8b
hex7afb1732f

33012413231 has 12 divisors (see below), whose sum is σ = 38460506040. Its totient is φ = 28253388240.

The previous prime is 33012413219. The next prime is 33012413243. The reversal of 33012413231 is 13231421033.

It is an interprime number because it is at equal distance from previous prime (33012413219) and next prime (33012413243).

It is not a de Polignac number, because 33012413231 - 26 = 33012413167 is a prime.

It is a super-2 number, since 2×330124132312 (a number of 22 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 = 33012413197 and 33012413206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33012413201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 478880 + ... + 543461.

It is an arithmetic number, because the mean of its divisors is an integer number (3205042170).

Almost surely, 233012413231 is an apocalyptic number.

33012413231 is a deficient number, since it is larger than the sum of its proper divisors (5448092809).

33012413231 is a wasteful number, since it uses less digits than its factorization.

33012413231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023014 (or 1023007 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 33012413231 its reverse (13231421033), we get a palindrome (46243834264).

The spelling of 33012413231 in words is "thirty-three billion, twelve million, four hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 7 49 659 4613 32291 1022341 7156387 50094709 673722719 4716059033 33012413231