Search a number
-
+
12220102040 = 235319854921
BaseRepresentation
bin10110110000101111…
…11111010110011000
31011112122021111120212
423120113333112120
5200011321231130
65340331110252
7611553103436
oct133027772630
934478244525
1012220102040
115200a24593
1224505a2388
1311c9939813
1483cd53d56
154b7c4ae95
hex2d85ff598

12220102040 has 32 divisors (see below), whose sum is σ = 28382175360. Its totient is φ = 4730361600.

The previous prime is 12220102021. The next prime is 12220102057. The reversal of 12220102040 is 4020102221.

It is a congruent number.

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, 4926221 + ... + 4928700.

It is an arithmetic number, because the mean of its divisors is an integer number (886942980).

Almost surely, 212220102040 is an apocalyptic number.

12220102040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220102040 is an abundant number, since it is smaller than the sum of its proper divisors (16162073320).

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

12220102040 is a wasteful number, since it uses less digits than its factorization.

12220102040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9854963 (or 9854959 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12220102040 its reverse (4020102221), we get a palindrome (16240204261).

The spelling of 12220102040 in words is "twelve billion, two hundred twenty million, one hundred two thousand, forty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 9854921 19709842 39419684 49274605 78839368 98549210 197098420 305502551 394196840 611005102 1222010204 1527512755 2444020408 3055025510 6110051020 12220102040