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3100200220 = 225132917219
BaseRepresentation
bin1011100011001001…
…0100110100011100
322000001120111012101
42320302110310130
522322122401340
61231344014444
7136553160415
oct27062246434
98001514171
103100200220
111350a89347
12726301424
133a5398200
14215a4a80c
15132287c9a
hexb8c94d1c

3100200220 has 36 divisors (see below), whose sum is σ = 7049752920. Its totient is φ = 1144688064.

The previous prime is 3100200217. The next prime is 3100200241. The reversal of 3100200220 is 220020013.

It is a super-2 number, since 2×31002002202 = 19222482808176096800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 3100200197 and 3100200206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 455230 + ... + 461989.

It is an arithmetic number, because the mean of its divisors is an integer number (195826470).

Almost surely, 23100200220 is an apocalyptic number.

It is an amenable number.

3100200220 is an abundant number, since it is smaller than the sum of its proper divisors (3949552700).

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

3100200220 is a wasteful number, since it uses less digits than its factorization.

3100200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917254 (or 917239 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 3100200220 is about 55679.4416279474. The cubic root of 3100200220 is about 1458.1311266272.

Adding to 3100200220 its reverse (220020013), we get a palindrome (3320220233).

The spelling of 3100200220 in words is "three billion, one hundred million, two hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 169 260 338 676 845 1690 3380 917219 1834438 3668876 4586095 9172190 11923847 18344380 23847694 47695388 59619235 119238470 155010011 238476940 310020022 620040044 775050055 1550100110 3100200220