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54475817540 = 2258161333757
BaseRepresentation
bin110010101111000000…
…110000001001000100
312012121111212021000212
4302233000300021010
51343031302130130
641005325454552
73635650544324
oct625700601104
9165544767025
1054475817540
11211151a7011
12a683a11458
1351a212a481
1428cad43284
15163c7a7e95
hexcaf030244

54475817540 has 24 divisors (see below), whose sum is σ = 114413577432. Its totient is φ = 21787591680.

The previous prime is 54475817537. The next prime is 54475817581. The reversal of 54475817540 is 4571857445.

It can be written as a sum of positive squares in 4 ways, for example, as 927080704 + 53548736836 = 30448^2 + 231406^2 .

It is a super-2 number, since 2×544758175402 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3659 + ... + 330098.

It is an arithmetic number, because the mean of its divisors is an integer number (4767232393).

Almost surely, 254475817540 is an apocalyptic number.

It is an amenable number.

54475817540 is an abundant number, since it is smaller than the sum of its proper divisors (59937759892).

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

54475817540 is a wasteful number, since it uses less digits than its factorization.

54475817540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341927 (or 341925 counting only the distinct ones).

The product of its (nonzero) digits is 3136000, while the sum is 50.

The spelling of 54475817540 in words is "fifty-four billion, four hundred seventy-five million, eight hundred seventeen thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 8161 16322 32644 40805 81610 163220 333757 667514 1335028 1668785 3337570 6675140 2723790877 5447581754 10895163508 13618954385 27237908770 54475817540