Search a number
-
+
54898089845 = 585081129049
BaseRepresentation
bin110011001000001011…
…100101111101110101
312020200221102220201212
4303020023211331311
51344412402333340
641115252331205
73652266031034
oct631013457565
9166627386655
1054898089845
11213115a4495
12a781313b05
13523b769541
14292b06471b
1516648baa65
hexcc82e5f75

54898089845 has 8 divisors (see below), whose sum is σ = 65878992600. Its totient is φ = 43917615360.

The previous prime is 54898089839. The next prime is 54898089847.

54898089845 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 35116511236 + 19781578609 = 187394^2 + 140647^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-54898089845 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54898089847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360881 + ... + 489929.

It is an arithmetic number, because the mean of its divisors is an integer number (8234874075).

Almost surely, 254898089845 is an apocalyptic number.

It is an amenable number.

54898089845 is a deficient number, since it is larger than the sum of its proper divisors (10980902755).

54898089845 is a wasteful number, since it uses less digits than its factorization.

54898089845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214135.

The product of its (nonzero) digits is 132710400, while the sum is 68.

The spelling of 54898089845 in words is "fifty-four billion, eight hundred ninety-eight million, eighty-nine thousand, eight hundred forty-five".

Divisors: 1 5 85081 129049 425405 645245 10979617969 54898089845