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69720290116 = 22472534
BaseRepresentation
bin100000011101110100…
…1110011001101000100
320122221221000201001021
41000323221303031010
52120241343240431
652010135440524
75015506454641
oct1007351631504
9218857021037
1069720290116
1127628316984
1211619226144
136761502049
143535804dc8
151c30cadb11
hex103ba73344

69720290116 has 45 divisors (see below), whose sum is σ = 127059049579. Its totient is φ = 33474695696.

The previous prime is 69720290111. The next prime is 69720290137. The reversal of 69720290116 is 61109202796.

It is a happy number.

The square root of 69720290116 is 264046.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 13608155716 + 56112134400 = 116654^2 + 236880^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69720290111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1315477146 + ... + 1315477198.

Almost surely, 269720290116 is an apocalyptic number.

69720290116 is the 264046-th square number.

It is an amenable number.

69720290116 is a deficient number, since it is larger than the sum of its proper divisors (57338759463).

69720290116 is an frugal number, since it uses more digits than its factorization.

69720290116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 69720290116 in words is "sixty-nine billion, seven hundred twenty million, two hundred ninety thousand, one hundred sixteen".

Divisors: 1 2 4 47 53 94 106 188 212 2209 2491 2809 4418 4982 5618 8836 9964 11236 117077 132023 148877 234154 264046 297754 468308 528092 595508 6205081 6997219 7890481 12410162 13994438 15780962 24820324 27988876 31561924 328869293 370852607 657738586 741705214 1315477172 1483410428 17430072529 34860145058 69720290116