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3112970437 = 3379237301
BaseRepresentation
bin1011100110001100…
…0010100011000101
322000221121021122101
42321203002203011
522333410023222
61232521432101
7140066545363
oct27143024305
98027537571
103112970437
111358210845
1272a63b631
133a7c19955
14217612633
1513345b927
hexb98c28c5

3112970437 has 4 divisors (see below), whose sum is σ = 3122208076. Its totient is φ = 3103732800.

The previous prime is 3112970381. The next prime is 3112970447. The reversal of 3112970437 is 7340792113.

It is a happy number.

It is a Cunningham number, because it is equal to 557942+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7340792113 = 16743956839.

It can be written as a sum of positive squares in 2 ways, for example, as 839492676 + 2273477761 = 28974^2 + 47681^2 .

It is a cyclic number.

It is not a de Polignac number, because 3112970437 - 27 = 3112970309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3112970396 and 3112970405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112970447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4618314 + ... + 4618987.

It is an arithmetic number, because the mean of its divisors is an integer number (780552019).

Almost surely, 23112970437 is an apocalyptic number.

It is an amenable number.

3112970437 is a deficient number, since it is larger than the sum of its proper divisors (9237639).

3112970437 is an equidigital number, since it uses as much as digits as its factorization.

3112970437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9237638.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 3112970437 is about 55794.0000089615. Note that the first 5 decimals coincide. The cubic root of 3112970437 is about 1460.1304751413.

The spelling of 3112970437 in words is "three billion, one hundred twelve million, nine hundred seventy thousand, four hundred thirty-seven".

Divisors: 1 337 9237301 3112970437