Search a number
-
+
54348949693 = 531025451881
BaseRepresentation
bin110010100111011100…
…110010100010111101
312012021200010201001201
4302213130302202331
51342301312342233
640544554335501
73632550310243
oct624734624275
9165250121051
1054348949693
112105a624355
12a64942a591
135181a6a53c
1428b815a793
15163159777d
hexca77328bd

54348949693 has 4 divisors (see below), whose sum is σ = 55374401628. Its totient is φ = 53323497760.

The previous prime is 54348949687. The next prime is 54348949717. The reversal of 54348949693 is 39694984345.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45155400004 + 9193549689 = 212498^2 + 95883^2 .

It is a cyclic number.

It is not a de Polignac number, because 54348949693 - 25 = 54348949661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54348946693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512725888 + ... + 512725993.

It is an arithmetic number, because the mean of its divisors is an integer number (13843600407).

Almost surely, 254348949693 is an apocalyptic number.

54348949693 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

54348949693 is a deficient number, since it is larger than the sum of its proper divisors (1025451935).

54348949693 is a wasteful number, since it uses less digits than its factorization.

54348949693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025451934.

The product of its digits is 100776960, while the sum is 64.

The spelling of 54348949693 in words is "fifty-four billion, three hundred forty-eight million, nine hundred forty-nine thousand, six hundred ninety-three".

Divisors: 1 53 1025451881 54348949693