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61110506113 = 193216342427
BaseRepresentation
bin111000111010011110…
…000101001010000001
312211201220012100202021
4320322132011022001
52000123242143423
644023534121441
74262242505566
oct707236051201
9184656170667
1061110506113
1123a0a318808
12ba15950281
1359bb848bb7
142d5a16886d
1518c9eb195d
hexe3a785281

61110506113 has 4 divisors (see below), whose sum is σ = 64326848560. Its totient is φ = 57894163668.

The previous prime is 61110506111. The next prime is 61110506117. The reversal of 61110506113 is 31160501116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61110506113 - 21 = 61110506111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61110506111) 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, 1608171195 + ... + 1608171232.

It is an arithmetic number, because the mean of its divisors is an integer number (16081712140).

Almost surely, 261110506113 is an apocalyptic number.

It is an amenable number.

61110506113 is a deficient number, since it is larger than the sum of its proper divisors (3216342447).

61110506113 is a wasteful number, since it uses less digits than its factorization.

61110506113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216342446.

The product of its (nonzero) digits is 540, while the sum is 25.

The spelling of 61110506113 in words is "sixty-one billion, one hundred ten million, five hundred six thousand, one hundred thirteen".

Divisors: 1 19 3216342427 61110506113