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2022012820 = 2252931112459
BaseRepresentation
bin111100010000101…
…0111011110010100
312012220202220010201
41320201113132110
513120113402240
6532350430244
7101051553052
oct17041273624
95186686121
102022012820
11948412183
12485202384
13262bb39b9
141527891d2
15bc7aed9a
hex78857794

2022012820 has 48 divisors (see below), whose sum is σ = 4534387200. Its totient is φ = 755717760.

The previous prime is 2022012749. The next prime is 2022012833. The reversal of 2022012820 is 282102202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38250 + ... + 74209.

It is an arithmetic number, because the mean of its divisors is an integer number (94466400).

Almost surely, 22022012820 is an apocalyptic number.

2022012820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022012820 is an abundant number, since it is smaller than the sum of its proper divisors (2512374380).

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

2022012820 is a wasteful number, since it uses less digits than its factorization.

2022012820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112528 (or 112526 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2022012820 is about 44966.7968616845. The cubic root of 2022012820 is about 1264.5265966986.

The spelling of 2022012820 in words is "two billion, twenty-two million, twelve thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 29 31 58 62 116 124 145 155 290 310 580 620 899 1798 3596 4495 8990 17980 112459 224918 449836 562295 1124590 2249180 3261311 3486229 6522622 6972458 13045244 13944916 16306555 17431145 32613110 34862290 65226220 69724580 101100641 202201282 404402564 505503205 1011006410 2022012820