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61200622113 = 320400207371
BaseRepresentation
bin111000111111110101…
…110110001000100001
312211222011202201122220
4320333311312020201
52000314324401423
644040513421253
74264415463501
oct707765661041
9184864681586
1061200622113
1123a56179244
12ba3bb6a829
135a0440b887
142d68105a01
1518d2d629e3
hexe3fd76221

61200622113 has 4 divisors (see below), whose sum is σ = 81600829488. Its totient is φ = 40800414740.

The previous prime is 61200622019. The next prime is 61200622123. The reversal of 61200622113 is 31122600216.

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 61200622113 - 220 = 61199573537 is a prime.

It is a super-2 number, since 2×612006221132 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61200622123) 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, 10200103683 + ... + 10200103688.

It is an arithmetic number, because the mean of its divisors is an integer number (20400207372).

Almost surely, 261200622113 is an apocalyptic number.

It is an amenable number.

61200622113 is a deficient number, since it is larger than the sum of its proper divisors (20400207375).

61200622113 is a wasteful number, since it uses less digits than its factorization.

61200622113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20400207374.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 61200622113 in words is "sixty-one billion, two hundred million, six hundred twenty-two thousand, one hundred thirteen".

Divisors: 1 3 20400207371 61200622113