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54657264220 = 225131223171889
BaseRepresentation
bin110010111001110100…
…111010101001011100
312020002011021201002021
4302321310322221130
51343414224423340
641035330505524
73643313036356
oct627164725134
9166064251067
1054657264220
11211a8667649
12a7147352a4
1352008b9980
1429070960d6
15164d699e4a
hexcb9d3aa5c

54657264220 has 48 divisors (see below), whose sum is σ = 123711295680. Its totient is φ = 20164525056.

The previous prime is 54657264203. The next prime is 54657264257. The reversal of 54657264220 is 2246275645.

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, 232036 + ... + 403924.

It is an arithmetic number, because the mean of its divisors is an integer number (2577318660).

Almost surely, 254657264220 is an apocalyptic number.

It is an amenable number.

54657264220 is an abundant number, since it is smaller than the sum of its proper divisors (69054031460).

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

54657264220 is a wasteful number, since it uses less digits than its factorization.

54657264220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173134 (or 173132 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 43.

The spelling of 54657264220 in words is "fifty-four billion, six hundred fifty-seven million, two hundred sixty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1223 2446 4892 6115 12230 15899 24460 31798 63596 79495 158990 171889 317980 343778 687556 859445 1718890 2234557 3437780 4469114 8938228 11172785 22345570 44691140 210220247 420440494 840880988 1051101235 2102202470 2732863211 4204404940 5465726422 10931452844 13664316055 27328632110 54657264220