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80698465 = 528375689
BaseRepresentation
bin1001100111101…
…01110001100001
312121211220111001
410303311301201
5131124322330
612001352001
71666632331
oct463656141
9177756431
1080698465
1141608a51
1223038601
1313946293
14aa090c1
1571409ca
hex4cf5c61

80698465 has 8 divisors (see below), whose sum is σ = 96889320. Its totient is φ = 64524672.

The previous prime is 80698463. The next prime is 80698469. The reversal of 80698465 is 56489608.

It can be written as a sum of positive squares in 4 ways, for example, as 7441984 + 73256481 = 2728^2 + 8559^2 .

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 80698465 - 21 = 80698463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80698463) 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, 11341 + ... + 17029.

It is an arithmetic number, because the mean of its divisors is an integer number (12111165).

Almost surely, 280698465 is an apocalyptic number.

It is an amenable number.

80698465 is a deficient number, since it is larger than the sum of its proper divisors (16190855).

80698465 is a wasteful number, since it uses less digits than its factorization.

80698465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8531.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 80698465 is about 8983.2324360444. The cubic root of 80698465 is about 432.1373038208.

The spelling of 80698465 in words is "eighty million, six hundred ninety-eight thousand, four hundred sixty-five".

Divisors: 1 5 2837 5689 14185 28445 16139693 80698465