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55130015149 = 1167673111149
BaseRepresentation
bin110011010110000000…
…010100010110101101
312021022002211221102221
4303112000110112231
51400401240441044
641154255315341
73661113253066
oct632600242655
9167262757387
1055130015149
11214205023a0
12a826b1bb51
135277820c51
14294db9756d
151679e2e484
hexcd60145ad

55130015149 has 16 divisors (see below), whose sum is σ = 61130721600. Its totient is φ = 49296360960.

The previous prime is 55130015123. The next prime is 55130015153. The reversal of 55130015149 is 94151003155.

It is not a de Polignac number, because 55130015149 - 29 = 55130014637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55130015119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440427 + ... + 551575.

It is an arithmetic number, because the mean of its divisors is an integer number (3820670100).

Almost surely, 255130015149 is an apocalyptic number.

It is an amenable number.

55130015149 is a deficient number, since it is larger than the sum of its proper divisors (6000706451).

55130015149 is a wasteful number, since it uses less digits than its factorization.

55130015149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111900.

The product of its (nonzero) digits is 13500, while the sum is 34.

The spelling of 55130015149 in words is "fifty-five billion, one hundred thirty million, fifteen thousand, one hundred forty-nine".

Divisors: 1 11 67 673 737 7403 45091 111149 496001 1222639 7446983 74803277 81916813 822836047 5011819559 55130015149