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212020102030 = 25113176181703
BaseRepresentation
bin1100010101110101100…
…0100000001110001110
3202021021001020010122111
43011131120200032032
511433204121231110
6241222314334234
721214025063152
oct3053530401616
9667231203574
10212020102030
1181a0a902820
123511112a37a
1316cbb6a1699
14a394653062
1557ad865e8a
hex315d62038e

212020102030 has 64 divisors (see below), whose sum is σ = 430330392576. Its totient is φ = 74512224000.

The previous prime is 212020102001. The next prime is 212020102033. The reversal of 212020102030 is 30201020212.

It is a super-2 number, since 2×2120201020302 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212020102030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020102033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2554159 + ... + 2635861.

It is an arithmetic number, because the mean of its divisors is an integer number (6723912384).

Almost surely, 2212020102030 is an apocalyptic number.

212020102030 is an abundant number, since it is smaller than the sum of its proper divisors (218310290546).

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

212020102030 is a wasteful number, since it uses less digits than its factorization.

212020102030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82513.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 212020102030 its reverse (30201020212), we get a palindrome (242221122242).

The spelling of 212020102030 in words is "two hundred twelve billion, twenty million, one hundred two thousand, thirty".

Divisors: 1 2 5 10 11 22 31 55 62 110 155 310 341 682 761 1522 1705 3410 3805 7610 8371 16742 23591 41855 47182 81703 83710 117955 163406 235910 259501 408515 519002 817030 898733 1297505 1797466 2532793 2595010 4493665 5065586 8987330 12663965 25327930 27860723 55721446 62175983 124351966 139303615 278607230 310879915 621759830 683935813 1367871626 1927455473 3419679065 3854910946 6839358130 9637277365 19274554730 21202010203 42404020406 106010051015 212020102030