Search a number
-
+
28794883383 = 327213792
BaseRepresentation
bin11010110100010011…
…110000110100110111
32202022202122122011100
4122310103300310313
5432432442232013
621121142141143
72036364320220
oct326423606467
982282578140
1028794883383
1111236a63092
1256b74217b3
13293b7cba46
141572386247
15b37e2c473
hex6b44f0d37

28794883383 has 18 divisors (see below), whose sum is σ = 47536634184. Its totient is φ = 16453449432.

The previous prime is 28794883333. The next prime is 28794883387. The reversal of 28794883383 is 38338849782.

28794883383 is a `hidden beast` number, since 2 + 8 + 79 + 488 + 3 + 3 + 83 = 666.

It is not a de Polignac number, because 28794883383 - 29 = 28794882871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 28794883383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28794883387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1336188 + ... + 1357566.

Almost surely, 228794883383 is an apocalyptic number.

28794883383 is a deficient number, since it is larger than the sum of its proper divisors (18741750801).

28794883383 is an frugal number, since it uses more digits than its factorization.

28794883383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42771 (or 21389 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

Multiplying 28794883383 by its sum of digits (63), we get a square (1814077653129 = 13468772).

28794883383 divided by its sum of digits (63) gives a square (457061641 = 213792).

The spelling of 28794883383 in words is "twenty-eight billion, seven hundred ninety-four million, eight hundred eighty-three thousand, three hundred eighty-three".

Divisors: 1 3 7 9 21 63 21379 64137 149653 192411 448959 1346877 457061641 1371184923 3199431487 4113554769 9598294461 28794883383