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52118457016220 = 22571188733131701
BaseRepresentation
bin10111101100110110001100…
…00111011101111110011100
320211112110211212210000202222
423312123012013131332130
523312402044444004340
6302502515535204512
713656301644100460
oct1366330607357634
9224473755700688
1052118457016220
111567434a295491
125a18aa5976738
1323109985ac74a
14cc279250c4a0
15605ac24078b5
hex2f66c61ddf9c

52118457016220 has 48 divisors (see below), whose sum is σ = 125085389032128. Its totient is φ = 17869029235200.

The previous prime is 52118457016201. The next prime is 52118457016231. The reversal of 52118457016220 is 2261075481125.

It is a happy number.

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, 15076370 + ... + 18208070.

It is an arithmetic number, because the mean of its divisors is an integer number (2605945604836).

Almost surely, 252118457016220 is an apocalyptic number.

It is an amenable number.

52118457016220 is an abundant number, since it is smaller than the sum of its proper divisors (72966932015908).

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

52118457016220 is a wasteful number, since it uses less digits than its factorization.

52118457016220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250590 (or 3250588 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 52118457016220 in words is "fifty-two trillion, one hundred eighteen billion, four hundred fifty-seven million, sixteen thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 118873 237746 475492 594365 832111 1188730 1664222 2377460 3131701 3328444 4160555 6263402 8321110 12526804 15658505 16642220 21921907 31317010 43843814 62634020 87687628 109609535 219219070 438438140 372274692973 744549385946 1489098771892 1861373464865 2605922850811 3722746929730 5211845701622 7445493859460 10423691403244 13029614254055 26059228508110 52118457016220