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28696440601 = 198737172867
BaseRepresentation
bin11010101110011100…
…001110111100011001
32202001220102020001101
4122232130032330121
5432232242044401
621103304151401
72034060502063
oct325634167431
982056366041
1028696440601
1111196435614
12568a468561
1329242b1c8a
14156327c733
15b2e484101
hex6ae70ef19

28696440601 has 8 divisors (see below), whose sum is σ = 30210411680. Its totient is φ = 27182832768.

The previous prime is 28696440599. The next prime is 28696440683. The reversal of 28696440601 is 10604469682.

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 28696440601 - 21 = 28696440599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28696440401) 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, 79570 + ... + 252436.

It is an arithmetic number, because the mean of its divisors is an integer number (3776301460).

Almost surely, 228696440601 is an apocalyptic number.

It is an amenable number.

28696440601 is a deficient number, since it is larger than the sum of its proper divisors (1513971079).

28696440601 is a wasteful number, since it uses less digits than its factorization.

28696440601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181623.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 28696440601 in words is "twenty-eight billion, six hundred ninety-six million, four hundred forty thousand, six hundred one".

Divisors: 1 19 8737 166003 172867 3284473 1510338979 28696440601