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54913954969 = 147613372013
BaseRepresentation
bin110011001001001000…
…000111010010011001
312020202001021221121001
4303021020013102121
51344430433024334
641121020345001
73652550626036
oct631110072231
9166661257531
1054913954969
112131a550165
12a7866a5161
135241b328a3
14292d1d438d
151665ea1714
hexcc9207499

54913954969 has 4 divisors (see below), whose sum is σ = 54914474596. Its totient is φ = 54913435344.

The previous prime is 54913954933. The next prime is 54913955071. The reversal of 54913954969 is 96945931945.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 27882320400 + 27031634569 = 166980^2 + 164413^2 .

It is a cyclic number.

It is not a de Polignac number, because 54913954969 - 217 = 54913823897 is a prime.

It is a super-2 number, since 2×549139549692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54913954969.

It is not an unprimeable number, because it can be changed into a prime (54913954919) 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, 38394 + ... + 333619.

It is an arithmetic number, because the mean of its divisors is an integer number (13728618649).

Almost surely, 254913954969 is an apocalyptic number.

It is an amenable number.

54913954969 is a deficient number, since it is larger than the sum of its proper divisors (519627).

54913954969 is a wasteful number, since it uses less digits than its factorization.

54913954969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519626.

The product of its digits is 47239200, while the sum is 64.

The spelling of 54913954969 in words is "fifty-four billion, nine hundred thirteen million, nine hundred fifty-four thousand, nine hundred sixty-nine".

Divisors: 1 147613 372013 54913954969