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3112132021 = 13943951001
BaseRepresentation
bin1011100101111111…
…0101110110110101
322000220000200112221
42321133311312311
522333201211041
61232451442341
7140056454125
oct27137656665
98026020487
103112132021
111357798939
1272a2b63b1
133a79b514b
14217474c85
151333432d1
hexb97f5db5

3112132021 has 8 divisors (see below), whose sum is σ = 3141723200. Its totient is φ = 3082644000.

The previous prime is 3112131989. The next prime is 3112132033. The reversal of 3112132021 is 1202312113.

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 3112132021 - 25 = 3112131989 is a prime.

It is a super-2 number, since 2×31121320212 = 19370731432267088882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3112131986 and 3112132004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112132321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35521 + ... + 86521.

It is an arithmetic number, because the mean of its divisors is an integer number (392715400).

Almost surely, 23112132021 is an apocalyptic number.

It is an amenable number.

3112132021 is a deficient number, since it is larger than the sum of its proper divisors (29591179).

3112132021 is a wasteful number, since it uses less digits than its factorization.

3112132021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51579.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3112132021 is about 55786.4860069175. The cubic root of 3112132021 is about 1459.9993777754. Note that the first 3 decimals are identical.

Adding to 3112132021 its reverse (1202312113), we get a palindrome (4314444134).

The spelling of 3112132021 in words is "three billion, one hundred twelve million, one hundred thirty-two thousand, twenty-one".

Divisors: 1 139 439 51001 61021 7089139 22389439 3112132021