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54247477461 = 3661209913033
BaseRepresentation
bin110010100001011001…
…101101000011010101
312012000121012101022220
4302201121231003111
51342044323234321
640530531412553
73630205643652
oct624131550325
9165017171286
1054247477461
1121008317801
12a61b454159
135166a2c8b8
1428a88a4c29
1516277019c6
hexca166d0d5

54247477461 has 16 divisors (see below), whose sum is σ = 72479467200. Its totient is φ = 36090299520.

The previous prime is 54247477441. The next prime is 54247477463. The reversal of 54247477461 is 16477474245.

It is not a de Polignac number, because 54247477461 - 26 = 54247477397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54247477463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4155801 + ... + 4168833.

It is an arithmetic number, because the mean of its divisors is an integer number (4529966700).

Almost surely, 254247477461 is an apocalyptic number.

It is an amenable number.

54247477461 is a deficient number, since it is larger than the sum of its proper divisors (18231989739).

54247477461 is a wasteful number, since it uses less digits than its factorization.

54247477461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15796.

The product of its digits is 5268480, while the sum is 51.

The spelling of 54247477461 in words is "fifty-four billion, two hundred forty-seven million, four hundred seventy-seven thousand, four hundred sixty-one".

Divisors: 1 3 661 1983 2099 6297 13033 39099 1387439 4162317 8614813 25844439 27356267 82068801 18082492487 54247477461