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23023222020 = 22325688318583
BaseRepresentation
bin10101011100010010…
…100111110100000100
32012102112020212012200
4111130102213310010
5334122421101040
614324323314500
71443352105161
oct253422476404
965375225180
1023023222020
119845010517
12456651ba30
13222bb2ccc6
141185a15068
158eb39a630
hex55c4a7d04

23023222020 has 72 divisors (see below), whose sum is σ = 69851011776. Its totient is φ = 6138303552.

The previous prime is 23023222007. The next prime is 23023222063. The reversal of 23023222020 is 2022232032.

23023222020 is a `hidden beast` number, since 2 + 302 + 322 + 20 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23023221984 and 23023222002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1229649 + ... + 1248231.

Almost surely, 223023222020 is an apocalyptic number.

23023222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23023222020 is an abundant number, since it is smaller than the sum of its proper divisors (46827789756).

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

23023222020 is a wasteful number, since it uses less digits than its factorization.

23023222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25481 (or 25476 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 23023222020 its reverse (2022232032), we get a palindrome (25045454052).

It can be divided in two parts, 230232 and 22020, that added together give a palindrome (252252).

The spelling of 23023222020 in words is "twenty-three billion, twenty-three million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 6883 13766 18583 20649 27532 34415 37166 41298 55749 61947 68830 74332 82596 92915 103245 111498 123894 137660 167247 185830 206490 222996 247788 278745 309735 334494 371660 412980 557490 619470 668988 836235 1114980 1238940 1672470 3344940 127906789 255813578 383720367 511627156 639533945 767440734 1151161101 1279067890 1534881468 1918601835 2302322202 2558135780 3837203670 4604644404 5755805505 7674407340 11511611010 23023222020