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3013123021 = 8370151787
BaseRepresentation
bin1011001110011000…
…1001101111001101
321202222201111201221
42303212021233031
522132324414041
61214553403341
7134445060136
oct26346115715
97688644657
103013123021
111306913a17
12701109551
1339032a73c
14208260c8d
151297d72d1
hexb3989bcd

3013123021 has 8 divisors (see below), whose sum is σ = 3053834784. Its totient is φ = 2972516400.

The previous prime is 3013122991. The next prime is 3013123067. The reversal of 3013123021 is 1203213103.

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 3013123021 - 215 = 3013090253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3013122986 and 3013123004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3013123621) 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, 32290 + ... + 84076.

It is an arithmetic number, because the mean of its divisors is an integer number (381729348).

Almost surely, 23013123021 is an apocalyptic number.

It is an amenable number.

3013123021 is a deficient number, since it is larger than the sum of its proper divisors (40711763).

3013123021 is an equidigital number, since it uses as much as digits as its factorization.

3013123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52571.

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

The square root of 3013123021 is about 54891.9212726244. The cubic root of 3013123021 is about 1444.3494748670.

Adding to 3013123021 its reverse (1203213103), we get a palindrome (4216336124).

The spelling of 3013123021 in words is "three billion, thirteen million, one hundred twenty-three thousand, twenty-one".

Divisors: 1 83 701 51787 58183 4298321 36302687 3013123021