Search a number
-
+
130732780 = 22573151593
BaseRepresentation
bin1111100101011…
…01001011101100
3100002222220122211
413302231023230
5231431422110
620550020204
73145132063
oct762551354
9302886584
10130732780
1167882522
1237947664
1321114199
14135111da
15b72598a
hex7cad2ec

130732780 has 48 divisors (see below), whose sum is σ = 280615104. Its totient is φ = 51148800.

The previous prime is 130732757. The next prime is 130732793. The reversal of 130732780 is 87237031.

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, 220164 + ... + 220756.

It is an arithmetic number, because the mean of its divisors is an integer number (5846148).

Almost surely, 2130732780 is an apocalyptic number.

130732780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130732780 is an abundant number, since it is smaller than the sum of its proper divisors (149882324).

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

130732780 is a wasteful number, since it uses less digits than its factorization.

130732780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 130732780 is about 11433.8436232091. The cubic root of 130732780 is about 507.5297433772.

The spelling of 130732780 in words is "one hundred thirty million, seven hundred thirty-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 73 146 151 292 302 365 593 604 730 755 1186 1460 1510 2372 2965 3020 5930 11023 11860 22046 43289 44092 55115 86578 89543 110230 173156 179086 216445 220460 358172 432890 447715 865780 895430 1790860 6536639 13073278 26146556 32683195 65366390 130732780