Search a number
-
+
28430459226 = 23213667918191
BaseRepresentation
bin11010011110100101…
…100110000101011010
32201101100220222012100
4122132211212011122
5431211144143401
621021043224230
72024350626141
oct323645460532
981340828170
1028430459226
111106a2868a4
125615378076
1328b1165350
141539c02758
15b15e44b86
hex69e96615a

28430459226 has 48 divisors (see below), whose sum is σ = 66351317760. Its totient is φ = 8746043040.

The previous prime is 28430459219. The next prime is 28430459231. The reversal of 28430459226 is 62295403482.

28430459226 is a `hidden beast` number, since 2 + 8 + 4 + 30 + 4 + 592 + 26 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1553791 + ... + 1571981.

It is an arithmetic number, because the mean of its divisors is an integer number (1382319120).

Almost surely, 228430459226 is an apocalyptic number.

28430459226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28430459226 is an abundant number, since it is smaller than the sum of its proper divisors (37920858534).

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

28430459226 is a wasteful number, since it uses less digits than its factorization.

28430459226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24891 (or 24888 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 28430459226 in words is "twenty-eight billion, four hundred thirty million, four hundred fifty-nine thousand, two hundred twenty-six".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 6679 13358 18191 20037 36382 40074 54573 60111 86827 109146 120222 163719 173654 236483 260481 327438 472966 520962 709449 781443 1418898 1562886 2128347 4256694 121497689 242995378 364493067 728986134 1093479201 1579469957 2186958402 3158939914 4738409871 9476819742 14215229613 28430459226