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33120468468 = 2232920013013
BaseRepresentation
bin11110110110001000…
…100011110111110100
310011111020000010101100
4132312020203313310
51020312314442333
623114302330100
72251520223363
oct366610436764
9104436003340
1033120468468
111305670619a
126503b89930
13317aa08849
141862a4d7da
15cdca67213
hex7b6223df4

33120468468 has 18 divisors (see below), whose sum is σ = 83721184274. Its totient is φ = 11040156144.

The previous prime is 33120468461. The next prime is 33120468527. The reversal of 33120468468 is 86486402133.

33120468468 is a `hidden beast` number, since 3 + 3 + 120 + 4 + 68 + 468 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20420981604 + 12699486864 = 142902^2 + 112692^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33120468461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 460006471 + ... + 460006542.

Almost surely, 233120468468 is an apocalyptic number.

It is an amenable number.

33120468468 is an abundant number, since it is smaller than the sum of its proper divisors (50600715806).

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

33120468468 is a wasteful number, since it uses less digits than its factorization.

33120468468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920013023 (or 920013018 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 33120468468 in words is "thirty-three billion, one hundred twenty million, four hundred sixty-eight thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 920013013 1840026026 2760039039 3680052052 5520078078 8280117117 11040156156 16560234234 33120468468