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2112030101 = 19223503991
BaseRepresentation
bin111110111100011…
…0000010110010101
312110012011020122002
41331320300112111
513311134430401
6545324045045
7103223650106
oct17570602625
95405136562
102112030101
11994205525
124ab393785
1327874076c
141606dc3ad
15c5641a6b
hex7de30595

2112030101 has 16 divisors (see below), whose sum is σ = 2239856640. Its totient is φ = 1985932080.

The previous prime is 2112030083. The next prime is 2112030103. The reversal of 2112030101 is 1010302112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2112030101 is a prime.

It is a super-2 number, since 2×21120301012 = 8921342295060140402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112030103) 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 15 ways as a sum of consecutive naturals, for example, 2130716 + ... + 2131706.

It is an arithmetic number, because the mean of its divisors is an integer number (139991040).

Almost surely, 22112030101 is an apocalyptic number.

It is an amenable number.

2112030101 is a deficient number, since it is larger than the sum of its proper divisors (127826539).

2112030101 is a wasteful number, since it uses less digits than its factorization.

2112030101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2112030101 is about 45956.8286656075. The cubic root of 2112030101 is about 1283.0198272971.

Adding to 2112030101 its reverse (1010302112), we get a palindrome (3122332213).

The spelling of 2112030101 in words is "two billion, one hundred twelve million, thirty thousand, one hundred one".

Divisors: 1 19 223 503 991 4237 9557 18829 112169 220993 498473 2131211 4198867 9470987 111159479 2112030101