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28701326 = 267214189
BaseRepresentation
bin110110101111…
…1001010001110
32000000011211002
41231133022032
524321420301
62503100302
7465646223
oct155371216
960004732
1028701326
1115223805
129741692
135c3bb44
143b5194a
1527be16b
hex1b5f28e

28701326 has 8 divisors (see below), whose sum is σ = 43694760. Its totient is φ = 14136408.

The previous prime is 28701311. The next prime is 28701377. The reversal of 28701326 is 62310782.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×287013262 = 1647532228316552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106961 + ... + 107228.

It is an arithmetic number, because the mean of its divisors is an integer number (5461845).

Almost surely, 228701326 is an apocalyptic number.

28701326 is a deficient number, since it is larger than the sum of its proper divisors (14993434).

28701326 is a wasteful number, since it uses less digits than its factorization.

28701326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214258.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 28701326 is about 5357.3618507620. The cubic root of 28701326 is about 306.1733037984.

The spelling of 28701326 in words is "twenty-eight million, seven hundred one thousand, three hundred twenty-six".

Divisors: 1 2 67 134 214189 428378 14350663 28701326