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121018036494 = 23223435720759
BaseRepresentation
bin111000010110100111…
…1001011000100001110
3102120100221210020000210
41300231033023010032
53440321104131434
6131332300303250
711512640223555
oct1605517130416
9376327706023
10121018036494
1147361587aa3
121b554841b26
13b54809b024
145c0062ad9c
15323454aee9
hex1c2d3cb10e

121018036494 has 32 divisors (see below), whose sum is σ = 243188951040. Its totient is φ = 40147300512.

The previous prime is 121018036471. The next prime is 121018036543. The reversal of 121018036494 is 494630810121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5819287 + ... + 5840045.

It is an arithmetic number, because the mean of its divisors is an integer number (7599654720).

Almost surely, 2121018036494 is an apocalyptic number.

121018036494 is an abundant number, since it is smaller than the sum of its proper divisors (122170914546).

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

121018036494 is a wasteful number, since it uses less digits than its factorization.

121018036494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25344.

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 121018036494 in words is "one hundred twenty-one billion, eighteen million, thirty-six thousand, four hundred ninety-four".

Divisors: 1 2 3 6 223 446 669 1338 4357 8714 13071 20759 26142 41518 62277 124554 971611 1943222 2914833 4629257 5829666 9258514 13887771 27775542 90446963 180893926 271340889 542681778 20169672749 40339345498 60509018247 121018036494