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33105161236 = 2272940769903
BaseRepresentation
bin11110110101001110…
…001010110000010100
310011110011012102210211
4132311032022300110
51020244410124421
623112554255204
72251243141030
oct366516126024
9104404172724
1033105161236
1113049000694
1264baa27504
1331777a9404
1418609c71c0
15cdb5419e1
hex7b538ac14

33105161236 has 24 divisors (see below), whose sum is σ = 68493438720. Its totient is φ = 13698687072.

The previous prime is 33105161231. The next prime is 33105161239. The reversal of 33105161236 is 63216150133.

It is a junction number, because it is equal to n+sod(n) for n = 33105161198 and 33105161207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33105161231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20384140 + ... + 20385763.

It is an arithmetic number, because the mean of its divisors is an integer number (2853893280).

Almost surely, 233105161236 is an apocalyptic number.

It is an amenable number.

33105161236 is an abundant number, since it is smaller than the sum of its proper divisors (35388277484).

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

33105161236 is a wasteful number, since it uses less digits than its factorization.

33105161236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40769943 (or 40769941 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 33105161236 in words is "thirty-three billion, one hundred five million, one hundred sixty-one thousand, two hundred thirty-six".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 40769903 81539806 163079612 285389321 570778642 1141557284 1182327187 2364654374 4729308748 8276290309 16552580618 33105161236