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69872697 = 3259181727
BaseRepresentation
bin1000010101000…
…10110000111001
311212110220022200
410022202300321
5120341411242
610533340413
71505623326
oct412426071
9155426280
1069872697
1136494434
121b497709
13116258bb
1493cbb4d
15620304c
hex42a2c39

69872697 has 24 divisors (see below), whose sum is σ = 103346880. Its totient is φ = 45476640.

The previous prime is 69872657. The next prime is 69872707. The reversal of 69872697 is 79627896.

It is not a de Polignac number, because 69872697 - 28 = 69872441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69872657) 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 in 23 ways as a sum of consecutive naturals, for example, 95748 + ... + 96474.

It is an arithmetic number, because the mean of its divisors is an integer number (4306120).

Almost surely, 269872697 is an apocalyptic number.

It is an amenable number.

69872697 is a deficient number, since it is larger than the sum of its proper divisors (33474183).

69872697 is a wasteful number, since it uses less digits than its factorization.

69872697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 970 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 69872697 is about 8358.9889938915. The cubic root of 69872697 is about 411.8785440995.

It can be divided in two parts, 69872 and 697, that multiplied together give a palindrome (48700784).

The spelling of 69872697 in words is "sixty-nine million, eight hundred seventy-two thousand, six hundred ninety-seven".

Divisors: 1 3 9 59 177 181 531 543 727 1629 2181 6543 10679 32037 42893 96111 128679 131587 386037 394761 1184283 7763633 23290899 69872697