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20200122030 = 23511487125693
BaseRepresentation
bin10010110100000001…
…010110011010101110
31221010210002112001210
4102310001112122232
5312332212401110
613140234415250
71313402130024
oct226401263256
957123075053
1020200122030
118626495730
123ab8b91526
131b9bca563a
14d98ada714
157d35eb520
hex4b40566ae

20200122030 has 64 divisors (see below), whose sum is σ = 52996612608. Its totient is φ = 4886904960.

The previous prime is 20200122017. The next prime is 20200122037. The reversal of 20200122030 is 3022100202.

It is a junction number, because it is equal to n+sod(n) for n = 20200121997 and 20200122015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200122037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97864 + ... + 223556.

It is an arithmetic number, because the mean of its divisors is an integer number (828072072).

Almost surely, 220200122030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20200122030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26498306304).

20200122030 is an abundant number, since it is smaller than the sum of its proper divisors (32796490578).

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

20200122030 is a wasteful number, since it uses less digits than its factorization.

20200122030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126201.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20200122030 its reverse (3022100202), we get a palindrome (23222222232).

The spelling of 20200122030 in words is "twenty billion, two hundred million, one hundred twenty-two thousand, thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 487 974 1461 2435 2922 4870 5357 7305 10714 14610 16071 26785 32142 53570 80355 125693 160710 251386 377079 628465 754158 1256930 1382623 1885395 2765246 3770790 4147869 6913115 8295738 13826230 20739345 41478690 61212491 122424982 183637473 306062455 367274946 612124910 673337401 918187365 1346674802 1836374730 2020012203 3366687005 4040024406 6733374010 10100061015 20200122030