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1301234431420 = 225711844957423
BaseRepresentation
bin10010111011110111100…
…111011011010110111100
311121101201021011001210101
4102323313213123112330
5132304412003301140
62433440121450444
7163003542112660
oct22736747332674
94541637131711
101301234431420
11461939a05850
12190230940a24
1395923a85931
1446da14bc8a0
1523cac4b299a
hex12ef79db5bc

1301234431420 has 48 divisors (see below), whose sum is σ = 3406868333568. Its totient is φ = 405579562560.

The previous prime is 1301234431373. The next prime is 1301234431459. The reversal of 1301234431420 is 241344321031.

It is a happy number.

It is a super-2 number, since 2×13012344314202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

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, 422477172 + ... + 422480251.

It is an arithmetic number, because the mean of its divisors is an integer number (70976423616).

Almost surely, 21301234431420 is an apocalyptic number.

1301234431420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301234431420 is an abundant number, since it is smaller than the sum of its proper divisors (2105633902148).

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

1301234431420 is a wasteful number, since it uses less digits than its factorization.

1301234431420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844957450 (or 844957448 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1301234431420 its reverse (241344321031), we get a palindrome (1542578752451).

The spelling of 1301234431420 in words is "one trillion, three hundred one billion, two hundred thirty-four million, four hundred thirty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 844957423 1689914846 3379829692 4224787115 5914701961 8449574230 9294531653 11829403922 16899148460 18589063306 23658807844 29573509805 37178126612 46472658265 59147019610 65061721571 92945316530 118294039220 130123443142 185890633060 260246886284 325308607855 650617215710 1301234431420