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61200622131 = 3113426754121
BaseRepresentation
bin111000111111110101…
…110110001000110011
312211222011202201200120
4320333311312020303
52000314324402011
644040513421323
74264415463525
oct707765661063
9184864681616
1061200622131
1123a56179260
12ba3bb6a843
135a0440b89c
142d68105a15
1518d2d62a06
hexe3fd76233

61200622131 has 16 divisors (see below), whose sum is σ = 89023329408. Its totient is φ = 37089518400.

The previous prime is 61200622129. The next prime is 61200622139. The reversal of 61200622131 is 13122600216.

It is not a de Polignac number, because 61200622131 - 21 = 61200622129 is a prime.

It is a super-2 number, since 2×612006221312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61200622139) 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, 1103751 + ... + 1157871.

It is an arithmetic number, because the mean of its divisors is an integer number (5563958088).

Almost surely, 261200622131 is an apocalyptic number.

61200622131 is a deficient number, since it is larger than the sum of its proper divisors (27822707277).

61200622131 is a wasteful number, since it uses less digits than its factorization.

61200622131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88402.

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

The spelling of 61200622131 in words is "sixty-one billion, two hundred million, six hundred twenty-two thousand, one hundred thirty-one".

Divisors: 1 3 11 33 34267 54121 102801 162363 376937 595331 1130811 1785993 1854564307 5563692921 20400207377 61200622131