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20222202 = 23721113237
BaseRepresentation
bin100110100100…
…1000011111010
31102001101122110
41031021003322
520134102302
62001233150
7333612600
oct115110372
942041573
1020222202
1110462270
1269327b6
134260600
142985870
151b96b6c
hex13490fa

20222202 has 144 divisors (see below), whose sum is σ = 57078432. Its totient is φ = 4717440.

The previous prime is 20222201. The next prime is 20222207.

20222202 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (20222201) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 546528 + ... + 546564.

It is an arithmetic number, because the mean of its divisors is an integer number (396378).

Almost surely, 220222202 is an apocalyptic number.

20222202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20222202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28539216).

20222202 is an abundant number, since it is smaller than the sum of its proper divisors (36856230).

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

20222202 is a wasteful number, since it uses less digits than its factorization.

20222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 20222202 is about 4496.9102726205. The cubic root of 20222202 is about 272.4433100376.

It can be divided in two parts, 2022 and 2202, that added together give a palindrome (4224).

The spelling of 20222202 in words is "twenty million, two hundred twenty-two thousand, two hundred two".

Divisors: 1 2 3 6 7 11 13 14 21 22 26 33 37 39 42 49 66 74 77 78 91 98 111 143 147 154 169 182 222 231 259 273 286 294 338 407 429 462 481 507 518 539 546 637 777 814 858 962 1001 1014 1078 1183 1221 1274 1443 1554 1617 1813 1859 1911 2002 2366 2442 2849 2886 3003 3234 3367 3549 3626 3718 3822 5291 5439 5577 5698 6006 6253 6734 7007 7098 8281 8547 10101 10582 10878 11154 12506 13013 14014 15873 16562 17094 18759 19943 20202 21021 23569 24843 26026 31746 37037 37518 39039 39886 42042 43771 47138 49686 59829 68783 70707 74074 78078 87542 91091 111111 119658 131313 137566 141414 182182 206349 222222 259259 262626 273273 306397 412698 481481 518518 546546 612794 777777 919191 962962 1444443 1555554 1838382 2888886 3370367 6740734 10111101 20222202