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54312421345 = 5713119367959
BaseRepresentation
bin110010100101010001…
…011100011111100001
312012012010101212120221
4302211101130133201
51342212434440340
640541211403041
73631624651510
oct624521343741
9165163355527
1054312421345
1121040a45036
12a639153481
13517731ac30
1428b336c677
15162d27e44a
hexca545c7e1

54312421345 has 16 divisors (see below), whose sum is σ = 80215269120. Its totient is φ = 34377971904.

The previous prime is 54312421333. The next prime is 54312421349.

54312421345 is nontrivially palindromic in base 10.

54312421345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 54312421345 - 211 = 54312419297 is a prime.

It is a super-2 number, since 2×543124213452 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54312421345.

It is not an unprimeable number, because it can be changed into a prime (54312421349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59683525 + ... + 59684434.

It is an arithmetic number, because the mean of its divisors is an integer number (5013454320).

Almost surely, 254312421345 is an apocalyptic number.

It is an amenable number.

54312421345 is a deficient number, since it is larger than the sum of its proper divisors (25902847775).

54312421345 is a wasteful number, since it uses less digits than its factorization.

54312421345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119367984.

The product of its digits is 57600, while the sum is 34.

The spelling of 54312421345 in words is "fifty-four billion, three hundred twelve million, four hundred twenty-one thousand, three hundred forty-five".

Divisors: 1 5 7 13 35 65 91 455 119367959 596839795 835575713 1551783467 4177878565 7758917335 10862484269 54312421345