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30953401808 = 2471396319793
BaseRepresentation
bin11100110100111101…
…110110110111010000
32221220012021201210012
4130310331312313100
51001343032324213
622115250454052
72144024400650
oct346475666720
987805251705
1030953401808
111214442aa0a
125bba294328
132bc3a68394
1416d8d06360
15c126a34a8
hex734f76dd0

30953401808 has 40 divisors (see below), whose sum is σ = 68548047168. Its totient is φ = 13264123392.

The previous prime is 30953401777. The next prime is 30953401813. The reversal of 30953401808 is 80810435903.

It is a super-2 number, since 2×309534018082 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1553960 + ... + 1573752.

Almost surely, 230953401808 is an apocalyptic number.

It is an amenable number.

30953401808 is an abundant number, since it is smaller than the sum of its proper divisors (37594645360).

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

30953401808 is a wasteful number, since it uses less digits than its factorization.

30953401808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33771 (or 33765 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 30953401808 in words is "thirty billion, nine hundred fifty-three million, four hundred one thousand, eight hundred eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 13963 19793 27926 39586 55852 79172 97741 111704 138551 158344 195482 223408 277102 316688 390964 554204 781928 1108408 1563856 2216816 276369659 552739318 1105478636 1934587613 2210957272 3869175226 4421914544 7738350452 15476700904 30953401808