Search a number
-
+
28954783 = 1113202481
BaseRepresentation
bin110111001110…
…1000010011111
32000111001111101
41232131002133
524403023113
62512333531
7501053164
oct156350237
960431441
1028954783
1115387180
1298442a7
135cca310
143bba06b
15281e2dd
hex1b9d09f

28954783 has 8 divisors (see below), whose sum is σ = 34016976. Its totient is φ = 24297600.

The previous prime is 28954771. The next prime is 28954811. The reversal of 28954783 is 38745982.

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 28954783 - 221 = 26857631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28954753) 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, 101098 + ... + 101383.

It is an arithmetic number, because the mean of its divisors is an integer number (4252122).

Almost surely, 228954783 is an apocalyptic number.

28954783 is a deficient number, since it is larger than the sum of its proper divisors (5062193).

28954783 is a wasteful number, since it uses less digits than its factorization.

28954783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202505.

The product of its digits is 483840, while the sum is 46.

The square root of 28954783 is about 5380.9648763024. The cubic root of 28954783 is about 307.0719202529.

The spelling of 28954783 in words is "twenty-eight million, nine hundred fifty-four thousand, seven hundred eighty-three".

Divisors: 1 11 13 143 202481 2227291 2632253 28954783