[go: up one dir, main page]

Search a number
-
+
130266280 = 23519171403
BaseRepresentation
bin1111100001110…
…11010010101000
3100002010012202001
413300323102220
5231322010110
620532020344
73141150034
oct760732250
9302105661
10130266280
1167593a91
12377616b4
1320caca51
141342d1c4
15b68263a
hex7c3b4a8

130266280 has 32 divisors (see below), whose sum is σ = 308527200. Its totient is φ = 49363776.

The previous prime is 130266203. The next prime is 130266329. The reversal of 130266280 is 82662031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84942 + ... + 86461.

It is an arithmetic number, because the mean of its divisors is an integer number (9641475).

Almost surely, 2130266280 is an apocalyptic number.

130266280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130266280 is an abundant number, since it is smaller than the sum of its proper divisors (178260920).

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

130266280 is a wasteful number, since it uses less digits than its factorization.

130266280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171433 (or 171429 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 130266280 is about 11413.4254279774. The cubic root of 130266280 is about 506.9253430577.

It can be divided in two parts, 13026 and 6280, that added together give a triangular number (19306 = T196).

The spelling of 130266280 in words is "one hundred thirty million, two hundred sixty-six thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 171403 342806 685612 857015 1371224 1714030 3256657 3428060 6513314 6856120 13026628 16283285 26053256 32566570 65133140 130266280