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133121401115886 = 23210987673125821
BaseRepresentation
bin11110010001001010111101…
…110100110101010011101110
3122110100021121022220020101100
4132101022331310311103232
5114422030112141202021
61151043043304423530
740016463263342121
oct3621127564652356
9573307538806340
10133121401115886
113946451850a137
1212b1b99ba77ba6
1359383a964bab1
1424c31785203b8
15105cbd6ca8626
hex7912bdd354ee

133121401115886 has 24 divisors (see below), whose sum is σ = 288455954753304. Its totient is φ = 44369761551120.

The previous prime is 133121401115837. The next prime is 133121401115887. The reversal of 133121401115886 is 688511104121331.

133121401115886 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 21 + 40 + 1 + 1 + 1 + 588 + 6 = 666.

It is a super-2 number, since 2×1331214011158862 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133121401115887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336365145 + ... + 336760676.

It is an arithmetic number, because the mean of its divisors is an integer number (12018998114721).

Almost surely, 2133121401115886 is an apocalyptic number.

133121401115886 is an abundant number, since it is smaller than the sum of its proper divisors (155334553637418).

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

133121401115886 is a wasteful number, since it uses less digits than its factorization.

133121401115886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673136816 (or 673136813 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 133121401115886 in words is "one hundred thirty-three trillion, one hundred twenty-one billion, four hundred one million, one hundred fifteen thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 9 18 10987 21974 32961 65922 98883 197766 673125821 1346251642 2019377463 4038754926 6058132389 12116264778 7395633395327 14791266790654 22186900185981 44373800371962 66560700557943 133121401115886