Search a number
-
+
54945454945 = 5177325135279
BaseRepresentation
bin110011001011000000…
…010001101101100001
312020211020120022102211
4303023000101231201
51400012014024240
641124103442121
73653412442513
oct631300215541
9166736508384
1054945454945
11213363055a7
12a795156341
135248511524
142933473bb3
151668b24bea
hexccb011b61

54945454945 has 32 divisors (see below), whose sum is σ = 71053355520. Its totient is φ = 40640256000.

The previous prime is 54945454919. The next prime is 54945454973.

54945454945 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54945454945 - 25 = 54945454913 is a prime.

It is a super-2 number, since 2×549454549452 (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 54945454945.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1539816 + ... + 1575094.

It is an arithmetic number, because the mean of its divisors is an integer number (2220417360).

Almost surely, 254945454945 is an apocalyptic number.

It is an amenable number.

54945454945 is a deficient number, since it is larger than the sum of its proper divisors (16107900575).

54945454945 is a wasteful number, since it uses less digits than its factorization.

54945454945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35625.

The product of its digits is 51840000, while the sum is 58.

The spelling of 54945454945 in words is "fifty-four billion, nine hundred forty-five million, four hundred fifty-four thousand, nine hundred forty-five".

Divisors: 1 5 17 73 85 251 365 1241 1255 4267 6205 18323 21335 35279 91615 176395 311491 599743 1557455 2575367 2998715 8855029 12876835 43781239 44275145 150535493 218906195 646417117 752677465 3232085585 10989090989 54945454945