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20152224036 = 2233726656381
BaseRepresentation
bin10010110001001010…
…101000100100100100
31221000102222001101000
4102301022220210210
5312232432132121
613131404033300
71312251035520
oct226112504444
957012861330
1020152224036
11860145020a
123aa4b32830
131b920a4c29
14d925ccd80
157ce2d9526
hex4b12a8924

20152224036 has 48 divisors (see below), whose sum is σ = 59710295680. Its totient is φ = 5757778080.

The previous prime is 20152224017. The next prime is 20152224047. The reversal of 20152224036 is 63042225102.

It is a happy number.

20152224036 is a `hidden beast` number, since 20 + 15 + 222 + 403 + 6 = 666.

It is a super-2 number, since 2×201522240362 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13327435 + ... + 13328946.

Almost surely, 220152224036 is an apocalyptic number.

It is an amenable number.

20152224036 is an abundant number, since it is smaller than the sum of its proper divisors (39558071644).

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

20152224036 is a wasteful number, since it uses less digits than its factorization.

20152224036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26656401 (or 26656393 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20152224036 its reverse (63042225102), we get a palindrome (83194449138).

The spelling of 20152224036 in words is "twenty billion, one hundred fifty-two million, two hundred twenty-four thousand, thirty-six".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 26656381 53312762 79969143 106625524 159938286 186594667 239907429 319876572 373189334 479814858 559784001 719722287 746378668 959629716 1119568002 1439444574 1679352003 2239136004 2878889148 3358704006 5038056009 6717408012 10076112018 20152224036