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69897076 = 22293891549
BaseRepresentation
bin1000010101010…
…00101101110100
311212112010202121
410022220231310
5120343201301
610534045324
71506054364
oct412505564
9155463677
1069897076
1136500787
121b4a9844
1311633a22
1493d69a4
15620a3a1
hex42a8b74

69897076 has 24 divisors (see below), whose sum is σ = 126945000. Its totient is φ = 33634944.

The previous prime is 69897019. The next prime is 69897077. The reversal of 69897076 is 67079896.

It can be written as a sum of positive squares in 4 ways, for example, as 2328676 + 67568400 = 1526^2 + 8220^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69897077) 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, 44350 + ... + 45898.

It is an arithmetic number, because the mean of its divisors is an integer number (5289375).

Almost surely, 269897076 is an apocalyptic number.

It is an amenable number.

69897076 is a deficient number, since it is larger than the sum of its proper divisors (57047924).

69897076 is a wasteful number, since it uses less digits than its factorization.

69897076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 69897076 is about 8360.4471172300. The cubic root of 69897076 is about 411.9264408216.

The spelling of 69897076 in words is "sixty-nine million, eight hundred ninety-seven thousand, seventy-six".

Divisors: 1 2 4 29 58 116 389 778 1549 1556 3098 6196 11281 22562 44921 45124 89842 179684 602561 1205122 2410244 17474269 34948538 69897076