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69145796 = 2217286449
BaseRepresentation
bin1000001111100…
…01010011000100
311211002222012102
410013301103010
5120200131141
610510011232
71466505146
oct407612304
9154088172
1069145796
1136038295
121b1a6b18
131142ca95
14927cc96
15610c99b
hex41f14c4

69145796 has 6 divisors (see below), whose sum is σ = 121005150. Its totient is φ = 34572896.

The previous prime is 69145781. The next prime is 69145799. The reversal of 69145796 is 69754196.

It can be written as a sum of positive squares in only one way, i.e., 46240000 + 22905796 = 6800^2 + 4786^2 .

It is a super-2 number, since 2×691457962 = 9562282208947232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 69145796.

It is not an unprimeable number, because it can be changed into a prime (69145799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8643221 + ... + 8643228.

It is an arithmetic number, because the mean of its divisors is an integer number (20167525).

Almost surely, 269145796 is an apocalyptic number.

It is an amenable number.

69145796 is a deficient number, since it is larger than the sum of its proper divisors (51859354).

69145796 is a wasteful number, since it uses less digits than its factorization.

69145796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17286453 (or 17286451 counting only the distinct ones).

The product of its digits is 408240, while the sum is 47.

The square root of 69145796 is about 8315.3951198966. The cubic root of 69145796 is about 410.4452747177.

Subtracting 69145796 from its reverse (69754196), we obtain a square (608400 = 7802).

The spelling of 69145796 in words is "sixty-nine million, one hundred forty-five thousand, seven hundred ninety-six".

Divisors: 1 2 4 17286449 34572898 69145796