Search a number
-
+
28746726 = 239749393
BaseRepresentation
bin110110110101…
…0001111100110
32000002111002120
41231222033212
524324343401
62504050410
7466225461
oct155521746
960074076
1028746726
1115254928
129763a06
135c566c8
143b642d8
1527cc836
hex1b6a3e6

28746726 has 16 divisors (see below), whose sum is σ = 58087344. Its totient is φ = 9483264.

The previous prime is 28746701. The next prime is 28746763. The reversal of 28746726 is 62764782.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24115 + ... + 25278.

It is an arithmetic number, because the mean of its divisors is an integer number (3630459).

Almost surely, 228746726 is an apocalyptic number.

28746726 is an abundant number, since it is smaller than the sum of its proper divisors (29340618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28746726 is a wasteful number, since it uses less digits than its factorization.

28746726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49495.

The product of its digits is 225792, while the sum is 42.

The square root of 28746726 is about 5361.5973366153. The cubic root of 28746726 is about 306.3346545926.

The spelling of 28746726 in words is "twenty-eight million, seven hundred forty-six thousand, seven hundred twenty-six".

Divisors: 1 2 3 6 97 194 291 582 49393 98786 148179 296358 4791121 9582242 14373363 28746726