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130322220 = 22357310291
BaseRepresentation
bin1111100010010…
…00111100101100
3100002020001110220
413301020330230
5231330302340
620533131340
73141502110
oct761107454
9302201426
10130322220
1167622016
1237789b50
1320ccc352
1413445740
15b693ed0
hex7c48f2c

130322220 has 48 divisors (see below), whose sum is σ = 417032448. Its totient is φ = 29787840.

The previous prime is 130322191. The next prime is 130322237. The reversal of 130322220 is 22223031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 130322220.

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, 154726 + ... + 155565.

It is an arithmetic number, because the mean of its divisors is an integer number (8688176).

Almost surely, 2130322220 is an apocalyptic number.

130322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130322220 is an abundant number, since it is smaller than the sum of its proper divisors (286710228).

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

130322220 is a wasteful number, since it uses less digits than its factorization.

130322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310310 (or 310308 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 130322220 is about 11415.8757876915. The cubic root of 130322220 is about 506.9978953342.

Adding to 130322220 its reverse (22223031), we get a palindrome (152545251).

The spelling of 130322220 in words is "one hundred thirty million, three hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 310291 620582 930873 1241164 1551455 1861746 2172037 3102910 3723492 4344074 4654365 6205820 6516111 8688148 9308730 10860185 13032222 18617460 21720370 26064444 32580555 43440740 65161110 130322220