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2554020205 = 51124221521
BaseRepresentation
bin1001100000111011…
…0100000101101101
320120222211200001221
42120032310011231
520212312121310
61101233303341
7120201546022
oct23016640555
96528750057
102554020205
1110a0750200
125b3404b51
13319194679
141a32b3549
15ee34bada
hex983b416d

2554020205 has 12 divisors (see below), whose sum is σ = 3368774556. Its totient is φ = 1857468800.

The previous prime is 2554020193. The next prime is 2554020221. The reversal of 2554020205 is 5020204552.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 441882441 + 2112137764 = 21021^2 + 45958^2 .

It is not a de Polignac number, because 2554020205 - 217 = 2553889133 is a prime.

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 2554020205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2110156 + ... + 2111365.

It is an arithmetic number, because the mean of its divisors is an integer number (280731213).

Almost surely, 22554020205 is an apocalyptic number.

It is an amenable number.

2554020205 is a deficient number, since it is larger than the sum of its proper divisors (814754351).

2554020205 is a wasteful number, since it uses less digits than its factorization.

2554020205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221548 (or 4221537 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 2554020205 is about 50537.3149761639. The cubic root of 2554020205 is about 1366.9147909265.

Adding to 2554020205 its reverse (5020204552), we get a palindrome (7574224757).

The spelling of 2554020205 in words is "two billion, five hundred fifty-four million, twenty thousand, two hundred five".

Divisors: 1 5 11 55 121 605 4221521 21107605 46436731 232183655 510804041 2554020205