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54470944668 = 22372110383987
BaseRepresentation
bin110010101110101110…
…001010011110011100
312012121011200200201010
4302232232022132130
51343024030212133
641005033215220
73635561250600
oct625656123634
9165534620633
1054470944668
1121112478a48
12a682261510
1351a111250a
1428ca435500
15163c144263
hexcaeb8a79c

54470944668 has 72 divisors (see below), whose sum is σ = 147985512192. Its totient is φ = 15548832096.

The previous prime is 54470944663. The next prime is 54470944679. The reversal of 54470944668 is 86644907445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54470944663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 606571 + ... + 690557.

It is an arithmetic number, because the mean of its divisors is an integer number (2055354336).

Almost surely, 254470944668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54470944668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73992756096).

54470944668 is an abundant number, since it is smaller than the sum of its proper divisors (93514567524).

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

54470944668 is a wasteful number, since it uses less digits than its factorization.

54470944668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85111 (or 85102 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 57.

The spelling of 54470944668 in words is "fifty-four billion, four hundred seventy million, nine hundred forty-four thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 1103 2206 3309 4412 6618 7721 13236 15442 23163 30884 46326 54047 83987 92652 108094 162141 167974 216188 251961 324282 335948 503922 587909 648564 1007844 1175818 1763727 2351636 3527454 4115363 7054908 8230726 12346089 16461452 24692178 49384356 92637661 185275322 277912983 370550644 555825966 648463627 1111651932 1296927254 1945390881 2593854508 3890781762 4539245389 7781563524 9078490778 13617736167 18156981556 27235472334 54470944668