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3020311231 = 71922709107
BaseRepresentation
bin1011010000000110…
…0100101010111111
321210111020201002221
42310001210222333
522141144424411
61215411430211
7134563136050
oct26401445277
97714221087
103020311231
11130a983593
127035b5367
13391976512
142091b2727
1512a257071
hexb4064abf

3020311231 has 8 divisors (see below), whose sum is σ = 3633457280. Its totient is φ = 2452583448.

The previous prime is 3020311201. The next prime is 3020311237. The reversal of 3020311231 is 1321130203.

3020311231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3020311231 - 29 = 3020310719 is a prime.

It is a super-3 number, since 3×30203112313 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020311237) 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, 11354421 + ... + 11354686.

It is an arithmetic number, because the mean of its divisors is an integer number (454182160).

Almost surely, 23020311231 is an apocalyptic number.

3020311231 is a deficient number, since it is larger than the sum of its proper divisors (613146049).

3020311231 is a wasteful number, since it uses less digits than its factorization.

3020311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22709133.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3020311231 is about 54957.3582971380. The cubic root of 3020311231 is about 1445.4971260003.

Adding to 3020311231 its reverse (1321130203), we get a palindrome (4341441434).

The spelling of 3020311231 in words is "three billion, twenty million, three hundred eleven thousand, two hundred thirty-one".

Divisors: 1 7 19 133 22709107 158963749 431473033 3020311231