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2021412412 = 2231109347431
BaseRepresentation
bin111100001111100…
…0100111000111100
312012212122101112101
41320133010320330
513114440144122
6532325514444
7101043502435
oct17037047074
95185571471
102021412412
11948042078
12484b72a24
13262a33626
1415267048c
15bc6e2027
hex787c4e3c

2021412412 has 48 divisors (see below), whose sum is σ = 3704279040. Its totient is φ = 964094400.

The previous prime is 2021412409. The next prime is 2021412427. The reversal of 2021412412 is 2142141202.

It is a super-2 number, since 2×20214124122 = 8172216278775315488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2021412412.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4689837 + ... + 4690267.

It is an arithmetic number, because the mean of its divisors is an integer number (77172480).

Almost surely, 22021412412 is an apocalyptic number.

It is an amenable number.

2021412412 is a deficient number, since it is larger than the sum of its proper divisors (1682866628).

2021412412 is a wasteful number, since it uses less digits than its factorization.

2021412412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 920 counting only the distinct ones).

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

The square root of 2021412412 is about 44960.1202400527. The cubic root of 2021412412 is about 1264.4014232349.

Adding to 2021412412 its reverse (2142141202), we get a palindrome (4163553614).

The spelling of 2021412412 in words is "two billion, twenty-one million, four hundred twelve thousand, four hundred twelve".

Divisors: 1 2 4 31 62 109 124 218 347 431 436 694 862 1388 1724 3379 6758 10757 13361 13516 21514 26722 37823 43028 46979 53444 75646 93958 149557 151292 187916 299114 598228 1172513 1456349 2345026 2912698 4636267 4690052 5825396 9272534 16301713 18545068 32603426 65206852 505353103 1010706206 2021412412