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12023114420 = 2252237268733
BaseRepresentation
bin10110011001010001…
…00010101010110100
31011000220121111101002
423030220202222310
5144110404130140
65305013022432
7603641533502
oct131450425264
934026544332
1012023114420
11510a8098a9
1223b6624a18
131197b986b5
14820b17672
154a57d9415
hex2cca22ab4

12023114420 has 24 divisors (see below), whose sum is σ = 25259921064. Its totient is φ = 4807078016.

The previous prime is 12023114419. The next prime is 12023114471. The reversal of 12023114420 is 2441132021.

It can be written as a sum of positive squares in 4 ways, for example, as 6175759396 + 5847355024 = 78586^2 + 76468^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12023114392 and 12023114401.

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, 89627 + ... + 179106.

It is an arithmetic number, because the mean of its divisors is an integer number (1052496711).

Almost surely, 212023114420 is an apocalyptic number.

12023114420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12023114420 is an abundant number, since it is smaller than the sum of its proper divisors (13236806644).

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

12023114420 is a wasteful number, since it uses less digits than its factorization.

12023114420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270979 (or 270977 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12023114420 its reverse (2441132021), we get a palindrome (14464246441).

The spelling of 12023114420 in words is "twelve billion, twenty-three million, one hundred fourteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 2237 4474 8948 11185 22370 44740 268733 537466 1074932 1343665 2687330 5374660 601155721 1202311442 2404622884 3005778605 6011557210 12023114420