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220024022420 = 22519183573487
BaseRepresentation
bin1100110011101001110…
…1000010010110010100
3210000220212000102022102
43030322131002112110
512101102122204140
6245024434221232
721616254222056
oct3147235022624
9700825012272
10220024022420
1185347908664
1236785724818
1317995988057
14a91365b8d6
155acb387e15
hex333a742594

220024022420 has 24 divisors (see below), whose sum is σ = 462075339264. Its totient is φ = 88004867616.

The previous prime is 220024022419. The next prime is 220024022423. The reversal of 220024022420 is 24220420022.

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 = 220024022392 and 220024022401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220024022423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96917 + ... + 670403.

It is an arithmetic number, because the mean of its divisors is an integer number (19253139136).

Almost surely, 2220024022420 is an apocalyptic number.

220024022420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220024022420 is an abundant number, since it is smaller than the sum of its proper divisors (242051316844).

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

220024022420 is a wasteful number, since it uses less digits than its factorization.

220024022420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592679 (or 592677 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 220024022420 its reverse (24220420022), we get a palindrome (244244442442).

The spelling of 220024022420 in words is "two hundred twenty billion, twenty-four million, twenty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 19183 38366 76732 95915 191830 383660 573487 1146974 2293948 2867435 5734870 11469740 11001201121 22002402242 44004804484 55006005605 110012011210 220024022420