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55115267107 = 7313917331397
BaseRepresentation
bin110011010101001000…
…000011110000100011
312021021002002122221011
4303111020003300203
51400334002021412
641153011241351
73660544016635
oct632510036043
9167232078834
1055115267107
1121413149a2a
12a821ba9257
1352747591b4
14294bc38a55
1516789b97a7
hexcd5203c23

55115267107 has 16 divisors (see below), whose sum is σ = 56599290720. Its totient is φ = 53655512832.

The previous prime is 55115267033. The next prime is 55115267113. The reversal of 55115267107 is 70176251155.

It is a cyclic number.

It is not a de Polignac number, because 55115267107 - 27 = 55115266979 is a prime.

It is a super-2 number, since 2×551152671072 (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 55115267107.

It is not an unprimeable number, because it can be changed into a prime (55115267117) 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, 1739733 + ... + 1771129.

It is an arithmetic number, because the mean of its divisors is an integer number (3537455670).

Almost surely, 255115267107 is an apocalyptic number.

55115267107 is a deficient number, since it is larger than the sum of its proper divisors (1484023613).

55115267107 is a wasteful number, since it uses less digits than its factorization.

55115267107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31782.

The product of its (nonzero) digits is 73500, while the sum is 40.

The spelling of 55115267107 in words is "fifty-five billion, one hundred fifteen million, two hundred sixty-seven thousand, one hundred seven".

Divisors: 1 73 139 173 10147 12629 24047 31397 1755431 2291981 4364183 5431681 318585359 396512713 755003659 55115267107