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28674801 = 3217187417
BaseRepresentation
bin110110101100…
…0101011110001
31222221211102200
41231120223301
524320043201
62502333413
7465506001
oct155305361
958854380
1028674801
1115205891
12972a269
135c2ca4c
143b46001
1527b6386
hex1b58af1

28674801 has 12 divisors (see below), whose sum is σ = 43855812. Its totient is φ = 17991936.

The previous prime is 28674791. The next prime is 28674803. The reversal of 28674801 is 10847682.

It can be written as a sum of positive squares in 2 ways, for example, as 20466576 + 8208225 = 4524^2 + 2865^2 .

It is not a de Polignac number, because 28674801 - 25 = 28674769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28674803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93556 + ... + 93861.

It is an arithmetic number, because the mean of its divisors is an integer number (3654651).

Almost surely, 228674801 is an apocalyptic number.

It is an amenable number.

28674801 is a deficient number, since it is larger than the sum of its proper divisors (15181011).

28674801 is a wasteful number, since it uses less digits than its factorization.

28674801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187440 (or 187437 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 28674801 is about 5354.8857130662. The cubic root of 28674801 is about 306.0789556606.

The spelling of 28674801 in words is "twenty-eight million, six hundred seventy-four thousand, eight hundred one".

Divisors: 1 3 9 17 51 153 187417 562251 1686753 3186089 9558267 28674801