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22840031412 = 223211232507689
BaseRepresentation
bin10101010001010111…
…110011100010110100
32011221202112210221100
4111101113303202310
5333234022001122
614254221050100
71435666030602
oct252127634264
964852483840
1022840031412
119760669720
1245150b6930
1321ccbacab3
14116956a872
158da261aac
hex5515f38b4

22840031412 has 72 divisors (see below), whose sum is σ = 65721539520. Its totient is φ = 6620296320.

The previous prime is 22840031411. The next prime is 22840031449. The reversal of 22840031412 is 21413004822.

22840031412 is a `hidden beast` number, since 228 + 400 + 31 + 4 + 1 + 2 = 666.

It is a super-2 number, since 2×228400314122 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22840031411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1244737 + ... + 1262952.

It is an arithmetic number, because the mean of its divisors is an integer number (912799160).

Almost surely, 222840031412 is an apocalyptic number.

22840031412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22840031412 is an abundant number, since it is smaller than the sum of its proper divisors (42881508108).

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

22840031412 is a wasteful number, since it uses less digits than its factorization.

22840031412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507733 (or 2507728 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The spelling of 22840031412 in words is "twenty-two billion, eight hundred forty million, thirty-one thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 11 12 18 22 23 33 36 44 46 66 69 92 99 132 138 198 207 253 276 396 414 506 759 828 1012 1518 2277 3036 4554 9108 2507689 5015378 7523067 10030756 15046134 22569201 27584579 30092268 45138402 55169158 57676847 82753737 90276804 110338316 115353694 165507474 173030541 230707388 248261211 331014948 346061082 496522422 519091623 634445317 692122164 993044844 1038183246 1268890634 1903335951 2076366492 2537781268 3806671902 5710007853 7613343804 11420015706 22840031412