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234130401220 = 22553271815047
BaseRepresentation
bin1101101000001101000…
…0100110011111000100
3211101022221122201011111
43122003100212133010
512313444340314340
6255320311014404
722625653400632
oct3320320463704
9741287581144
10234130401220
1190326564861
123946196a404
1319103331c61
14b490d06352
1561549d0aea
hex36834267c4

234130401220 has 48 divisors (see below), whose sum is σ = 502799851008. Its totient is φ = 91545966720.

The previous prime is 234130401217. The next prime is 234130401257. The reversal of 234130401220 is 22104031432.

It is a junction number, because it is equal to n+sod(n) for n = 234130401191 and 234130401200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120264 + ... + 694783.

It is an arithmetic number, because the mean of its divisors is an integer number (10474996896).

Almost surely, 2234130401220 is an apocalyptic number.

234130401220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234130401220 is an abundant number, since it is smaller than the sum of its proper divisors (268669449788).

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

234130401220 is a wasteful number, since it uses less digits than its factorization.

234130401220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815380 (or 815378 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 234130401220 its reverse (22104031432), we get a palindrome (256234432652).

The spelling of 234130401220 in words is "two hundred thirty-four billion, one hundred thirty million, four hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 271 530 542 1060 1084 1355 2710 5420 14363 28726 57452 71815 143630 287260 815047 1630094 3260188 4075235 8150470 16300940 43197491 86394982 172789964 215987455 220877737 431974910 441755474 863949820 883510948 1104388685 2208777370 4417554740 11706520061 23413040122 46826080244 58532600305 117065200610 234130401220