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90104868860454 = 2337673557801029
BaseRepresentation
bin10100011111001100101100…
…101100110111001000100110
3102211000221102020100100122000
4110133030230230313020212
543302234232412013304
6515345334425150130
724656601435212610
oct2437145454671046
9384027366310560
1090104868860454
112678a295496178
12a132b1632b346
133b37b11431696
141837155629db0
15a63c7b266939
hex51f32cb37226

90104868860454 has 64 divisors (see below), whose sum is σ = 232253251238400. Its totient is φ = 25360005727584.

The previous prime is 90104868860417. The next prime is 90104868860507. The reversal of 90104868860454 is 45406886840109.

90104868860454 is a `hidden beast` number, since 9 + 0 + 1 + 0 + 48 + 6 + 88 + 60 + 454 = 666.

It is a super-2 number, since 2×901048688604542 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 90104868860391 and 90104868860400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1778875189 + ... + 1778925840.

It is an arithmetic number, because the mean of its divisors is an integer number (3628957050600).

Almost surely, 290104868860454 is an apocalyptic number.

90104868860454 is an abundant number, since it is smaller than the sum of its proper divisors (142148382377946).

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

90104868860454 is a wasteful number, since it uses less digits than its factorization.

90104868860454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557801114 (or 3557801108 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 63.

The spelling of 90104868860454 in words is "ninety trillion, one hundred four billion, eight hundred sixty-eight million, eight hundred sixty thousand, four hundred fifty-four".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 67 126 134 189 201 378 402 469 603 938 1206 1407 1809 2814 3618 4221 8442 12663 25326 3557801029 7115602058 10673403087 21346806174 24904607203 32020209261 49809214406 64040418522 74713821609 96060627783 149427643218 192121255566 224141464827 238372668943 448282929654 476745337886 672424394481 715118006829 1344848788962 1430236013658 1668608682601 2145354020487 3337217365202 4290708040974 5005826047803 6436062061461 10011652095606 12872124122922 15017478143409 30034956286818 45052434430227 90104868860454