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20024422660 = 22511671358509
BaseRepresentation
bin10010101001100011…
…000111000100000100
31220200112111001211201
4102221203013010010
5312002223011120
613111000512244
71306136532664
oct225143070404
956615431751
1020024422660
1185462a0140
123a6a17b684
131b71779108
14d7d6421a4
157c2e9240a
hex4a98c7104

20024422660 has 48 divisors (see below), whose sum is σ = 46558854720. Its totient is φ = 7172922240.

The previous prime is 20024422643. The next prime is 20024422661. The reversal of 20024422660 is 6622442002.

It is not an unprimeable number, because it can be changed into a prime (20024422661) by changing a digit.

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, 664515 + ... + 693994.

It is an arithmetic number, because the mean of its divisors is an integer number (969976140).

Almost surely, 220024422660 is an apocalyptic number.

20024422660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20024422660 is an abundant number, since it is smaller than the sum of its proper divisors (26534432060).

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

20024422660 is a wasteful number, since it uses less digits than its factorization.

20024422660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358596 (or 1358594 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20024422660 its reverse (6622442002), we get a palindrome (26646864662).

The spelling of 20024422660 in words is "twenty billion, twenty-four million, four hundred twenty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 67 110 134 220 268 335 670 737 1340 1474 2948 3685 7370 14740 1358509 2717018 5434036 6792545 13585090 14943599 27170180 29887198 59774396 74717995 91020103 149435990 182040206 298871980 364080412 455100515 910201030 1001221133 1820402060 2002442266 4004884532 5006105665 10012211330 20024422660