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2112135401 = 109131147919
BaseRepresentation
bin111110111100100…
…1010000011101001
312110012100121002002
41331321022003221
513311201313101
6545330220345
7103224566105
oct17571120351
95405317062
102112135401
11994277652
124ab4246b5
1327877967c
14160728905
15c5662d6b
hex7de4a0e9

2112135401 has 8 divisors (see below), whose sum is σ = 2147798400. Its totient is φ = 2076768720.

The previous prime is 2112135373. The next prime is 2112135427. The reversal of 2112135401 is 1045312112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112135401 - 214 = 2112119017 is a prime.

It is a super-2 number, since 2×21121354012 = 8922231904314861602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112135461) 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 7 ways as a sum of consecutive naturals, for example, 59681 + ... + 88238.

It is an arithmetic number, because the mean of its divisors is an integer number (268474800).

Almost surely, 22112135401 is an apocalyptic number.

It is an amenable number.

2112135401 is a deficient number, since it is larger than the sum of its proper divisors (35662999).

2112135401 is a wasteful number, since it uses less digits than its factorization.

2112135401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148159.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2112135401 is about 45957.9742917374. The cubic root of 2112135401 is about 1283.0411495536.

Adding to 2112135401 its reverse (1045312112), we get a palindrome (3157447513).

The spelling of 2112135401 in words is "two billion, one hundred twelve million, one hundred thirty-five thousand, four hundred one".

Divisors: 1 109 131 14279 147919 16123171 19377389 2112135401