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55102839805 = 5134871740731
BaseRepresentation
bin110011010100011000…
…101001101111111101
312021020012201021212201
4303110120221233331
51400322311333210
641151445031501
73660333260506
oct632430515775
9167205637781
1055102839805
1121407131132
12a8199b5591
135271cc7870
14294a321bad
15167786253a
hexcd4629bfd

55102839805 has 16 divisors (see below), whose sum is σ = 71356086144. Its totient is φ = 40607749440.

The previous prime is 55102839793. The next prime is 55102839821. The reversal of 55102839805 is 50893820155.

It is not a de Polignac number, because 55102839805 - 29 = 55102839293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 838711 + ... + 902020.

It is an arithmetic number, because the mean of its divisors is an integer number (4459755384).

Almost surely, 255102839805 is an apocalyptic number.

It is an amenable number.

55102839805 is a deficient number, since it is larger than the sum of its proper divisors (16253246339).

55102839805 is a wasteful number, since it uses less digits than its factorization.

55102839805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741236.

The product of its (nonzero) digits is 432000, while the sum is 46.

The spelling of 55102839805 in words is "fifty-five billion, one hundred two million, eight hundred thirty-nine thousand, eight hundred five".

Divisors: 1 5 13 65 487 2435 6331 31655 1740731 8703655 22629503 113147515 847735997 4238679985 11020567961 55102839805