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20404362153 = 379712917759
BaseRepresentation
bin10011000000001100…
…011101101110101001
31221200000101222211210
4103000030131232221
5313242004042103
613212412143333
71321432134210
oct230014355651
957600358753
1020404362153
11872080431a
123b55467b49
131c023b5896
14db7ca4077
157e64e1e03
hex4c031dba9

20404362153 has 32 divisors (see below), whose sum is σ = 31441285120. Its totient is φ = 11529008640.

The previous prime is 20404362133. The next prime is 20404362169. The reversal of 20404362153 is 35126340402.

It is not a de Polignac number, because 20404362153 - 213 = 20404353961 is a prime.

It is a super-3 number, since 3×204043621533 (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20404362153.

It is not an unprimeable number, because it can be changed into a prime (20404362133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2625888 + ... + 2633646.

It is an arithmetic number, because the mean of its divisors is an integer number (982540160).

Almost surely, 220404362153 is an apocalyptic number.

It is an amenable number.

20404362153 is a deficient number, since it is larger than the sum of its proper divisors (11036922967).

20404362153 is a wasteful number, since it uses less digits than its factorization.

20404362153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9157.

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 20404362153 in words is "twenty billion, four hundred four million, three hundred sixty-two thousand, one hundred fifty-three".

Divisors: 1 3 7 21 97 291 679 1291 2037 3873 7759 9037 23277 27111 54313 125227 162939 375681 752623 876589 2257869 2629767 5268361 10016869 15805083 30050607 70118083 210354249 971636293 2914908879 6801454051 20404362153