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61022540013 = 3891432115959
BaseRepresentation
bin111000110101001110…
…100001000011101101
312211111202200012221120
4320311032201003231
51444433232240023
644011112451153
74260124013631
oct706516410355
9184452605846
1061022540013
11239746a6556
12b9b03a9ab9
1359a6559956
142d4c5cadc1
1518c23d78e3
hexe353a10ed

61022540013 has 16 divisors (see below), whose sum is σ = 82288483200. Its totient is φ = 40219266560.

The previous prime is 61022540011. The next prime is 61022540039. The reversal of 61022540013 is 31004522016.

61022540013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61022540013 - 21 = 61022540011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61022540011) 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, 3815728 + ... + 3831686.

It is an arithmetic number, because the mean of its divisors is an integer number (5143030200).

Almost surely, 261022540013 is an apocalyptic number.

It is an amenable number.

61022540013 is a deficient number, since it is larger than the sum of its proper divisors (21265943187).

61022540013 is a wasteful number, since it uses less digits than its factorization.

61022540013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30372.

The product of its (nonzero) digits is 1440, while the sum is 24.

The spelling of 61022540013 in words is "sixty-one billion, twenty-two million, five hundred forty thousand, thirteen".

Divisors: 1 3 89 267 14321 15959 42963 47877 1274569 1420351 3823707 4261053 228548839 685646517 20340846671 61022540013