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61069411429 = 1336209129737
BaseRepresentation
bin111000111000000001…
…010100010001100101
312211122000212112102221
4320320001110101211
52000032232131204
644015505232341
74261233301165
oct707001242145
9184560775387
1061069411429
11239990aa764
12ba040326b1
1359b318b010
142d5490c5a5
1518c6595654
hexe38054465

61069411429 has 8 divisors (see below), whose sum is σ = 65769381720. Its totient is φ = 56369773056.

The previous prime is 61069411427. The next prime is 61069411477. The reversal of 61069411429 is 92411496016.

It can be written as a sum of positive squares in 4 ways, for example, as 419020900 + 60650390529 = 20470^2 + 246273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61069411429 - 21 = 61069411427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61069411427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405849 + ... + 535585.

It is an arithmetic number, because the mean of its divisors is an integer number (8221172715).

Almost surely, 261069411429 is an apocalyptic number.

It is an amenable number.

61069411429 is a deficient number, since it is larger than the sum of its proper divisors (4699970291).

61069411429 is a wasteful number, since it uses less digits than its factorization.

61069411429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165959.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 61069411429 in words is "sixty-one billion, sixty-nine million, four hundred eleven thousand, four hundred twenty-nine".

Divisors: 1 13 36209 129737 470717 1686581 4697647033 61069411429