Search a number
-
+
3188133780 = 2235134087351
BaseRepresentation
bin1011111000000111…
…0000111110010100
322020012000222100220
42332001300332110
523012130240110
61244204434340
7142001455446
oct27601607624
98205028326
103188133780
111396689107
1274b8489b0
133ba6756c0
142235ba496
15139d57370
hexbe070f94

3188133780 has 48 divisors (see below), whose sum is σ = 9613451904. Its totient is φ = 784771200.

The previous prime is 3188133757. The next prime is 3188133791. The reversal of 3188133780 is 873318813.

3188133780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2042896 + ... + 2044455.

It is an arithmetic number, because the mean of its divisors is an integer number (200280248).

Almost surely, 23188133780 is an apocalyptic number.

3188133780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3188133780 is an abundant number, since it is smaller than the sum of its proper divisors (6425318124).

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

3188133780 is a wasteful number, since it uses less digits than its factorization.

3188133780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087376 (or 4087374 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 3188133780 is about 56463.5615242255. The cubic root of 3188133780 is about 1471.7888629953.

The spelling of 3188133780 in words is "three billion, one hundred eighty-eight million, one hundred thirty-three thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 4087351 8174702 12262053 16349404 20436755 24524106 40873510 49048212 53135563 61310265 81747020 106271126 122620530 159406689 212542252 245241060 265677815 318813378 531355630 637626756 797033445 1062711260 1594066890 3188133780