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2141203031 = 111811075441
BaseRepresentation
bin111111110100000…
…0010101001010111
312112020001101100222
41333220002221113
513341121444111
6552245224555
7104026632302
oct17750025127
95466041328
102141203031
119a9720590
124b910215b
132817b6156
14164533b39
15c7ea57db
hex7fa02a57

2141203031 has 8 divisors (see below), whose sum is σ = 2348765328. Its totient is φ = 1935792000.

The previous prime is 2141203027. The next prime is 2141203049. The reversal of 2141203031 is 1303021412.

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 2141203031 - 22 = 2141203027 is a prime.

It is a super-2 number, since 2×21412030312 = 9169500839927173922, 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 (2141202031) 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, 535730 + ... + 539711.

It is an arithmetic number, because the mean of its divisors is an integer number (293595666).

Almost surely, 22141203031 is an apocalyptic number.

2141203031 is a deficient number, since it is larger than the sum of its proper divisors (207562297).

2141203031 is a wasteful number, since it uses less digits than its factorization.

2141203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075633.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2141203031 is about 46273.1350893799. The cubic root of 2141203031 is about 1288.9001764984.

Adding to 2141203031 its reverse (1303021412), we get a palindrome (3444224443).

The spelling of 2141203031 in words is "two billion, one hundred forty-one million, two hundred three thousand, thirty-one".

Divisors: 1 11 181 1991 1075441 11829851 194654821 2141203031