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23022031020 = 2235383700517
BaseRepresentation
bin10101011100001110…
…000101000010101100
32012102110000100110120
4111130032011002230
5334122114443040
614324242004540
71443336014652
oct253416050254
965373010416
1023022031020
11984437771a
124566046750
13222b803b81
1411857c4dd2
158eb2127d0
hex55c3850ac

23022031020 has 24 divisors (see below), whose sum is σ = 64461687024. Its totient is φ = 6139208256.

The previous prime is 23022031013. The next prime is 23022031051. The reversal of 23022031020 is 2013022032.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 191850199 + ... + 191850318.

It is an arithmetic number, because the mean of its divisors is an integer number (2685903626).

Almost surely, 223022031020 is an apocalyptic number.

23022031020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23022031020 is an abundant number, since it is smaller than the sum of its proper divisors (41439656004).

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

23022031020 is a wasteful number, since it uses less digits than its factorization.

23022031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383700529 (or 383700527 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23022031020 its reverse (2013022032), we get a palindrome (25035053052).

The spelling of 23022031020 in words is "twenty-three billion, twenty-two million, thirty-one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 383700517 767401034 1151101551 1534802068 1918502585 2302203102 3837005170 4604406204 5755507755 7674010340 11511015510 23022031020