Search a number
-
+
28384060455 = 32517232576277
BaseRepresentation
bin11010011011110100…
…100110010000100111
32201021010121200001100
4122123310212100213
5431112304413310
621012304531143
72023245350562
oct323364462047
981233550040
1028384060455
1111046075803
125601920ab3
1328a466b15a
1415339a54d9
15b11d2bec0
hex69bd26427

28384060455 has 96 divisors (see below), whose sum is σ = 54578219904. Its totient is φ = 13573029888.

The previous prime is 28384060433. The next prime is 28384060457. The reversal of 28384060455 is 55406048382.

28384060455 is a `hidden beast` number, since 2 + 8 + 38 + 4 + 0 + 604 + 5 + 5 = 666.

It is not a de Polignac number, because 28384060455 - 211 = 28384058407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28384060455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28384060457) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4518777 + ... + 4525053.

It is an arithmetic number, because the mean of its divisors is an integer number (568523124).

Almost surely, 228384060455 is an apocalyptic number.

28384060455 is a deficient number, since it is larger than the sum of its proper divisors (26194159449).

28384060455 is a wasteful number, since it uses less digits than its factorization.

28384060455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6585 (or 6582 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

It can be divided in two parts, 28 and 384060455, that added together give a palindrome (384060483).

The spelling of 28384060455 in words is "twenty-eight billion, three hundred eighty-four million, sixty thousand, four hundred fifty-five".

Divisors: 1 3 5 9 15 17 23 45 51 69 85 115 153 207 255 257 345 391 765 771 1035 1173 1285 1955 2313 3519 3855 4369 5865 5911 6277 11565 13107 17595 17733 18831 21845 29555 31385 39321 53199 56493 65535 88665 94155 100487 106709 144371 196605 265995 282465 301461 320127 433113 502435 533545 721855 904383 960381 1299339 1507305 1600635 1613189 2165565 2454307 4521915 4801905 4839567 6496695 7362921 8065945 12271535 14518701 22088763 24197835 27424213 36814605 37103347 72593505 82272639 110443815 111310041 137121065 185516735 246817917 333930123 411363195 556550205 630756899 1234089585 1669650615 1892270697 3153784495 5676812091 9461353485 28384060455