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3072001231 = 131999118213
BaseRepresentation
bin1011011100011011…
…0000010011001111
321221002111211110101
42313012300103033
522242413014411
61224455351531
7136061402545
oct26706602317
97832454411
103072001231
111337078aa2
127189825a7
1339c5a3c10
14211dc9d95
1512ea678c1
hexb71b04cf

3072001231 has 8 divisors (see below), whose sum is σ = 3309992000. Its totient is φ = 2834250912.

The previous prime is 3072001217. The next prime is 3072001237. The reversal of 3072001231 is 1321002703.

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 3072001231 - 25 = 3072001199 is a prime.

It is a super-2 number, since 2×30720012312 = 18874383126531030722, 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 = 3072001199 and 3072001208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3072001237) 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, 33120 + ... + 85093.

It is an arithmetic number, because the mean of its divisors is an integer number (413749000).

Almost surely, 23072001231 is an apocalyptic number.

3072001231 is a deficient number, since it is larger than the sum of its proper divisors (237990769).

3072001231 is a wasteful number, since it uses less digits than its factorization.

3072001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120225.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 3072001231 is about 55425.6369471745. The cubic root of 3072001231 is about 1453.6966684389.

Adding to 3072001231 its reverse (1321002703), we get a palindrome (4393003934).

The spelling of 3072001231 in words is "three billion, seventy-two million, one thousand, two hundred thirty-one".

Divisors: 1 13 1999 25987 118213 1536769 236307787 3072001231