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3120415012 = 22111319992729
BaseRepresentation
bin1011100111111101…
…1100000100100100
322001110121111200101
42321333130010210
522342311240022
61233345153444
7140220042601
oct27177340444
98043544611
103120415012
111361435a90
1273102b884
133a9625320
142185cd6a8
15133e2c627
hexb9fdc124

3120415012 has 48 divisors (see below), whose sum is σ = 6420960000. Its totient is φ = 1308130560.

The previous prime is 3120415009. The next prime is 3120415021. The reversal of 3120415012 is 2105140213.

It is a super-2 number, since 2×31204150122 = 19473979694229920288, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1142064 + ... + 1144792.

It is an arithmetic number, because the mean of its divisors is an integer number (133770000).

Almost surely, 23120415012 is an apocalyptic number.

It is an amenable number.

3120415012 is an abundant number, since it is smaller than the sum of its proper divisors (3300544988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3120415012 is a wasteful number, since it uses less digits than its factorization.

3120415012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756 (or 4754 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 3120415012 is about 55860.6750048726. The cubic root of 3120415012 is about 1461.2935011977.

Adding to 3120415012 its reverse (2105140213), we get a palindrome (5225555225).

The spelling of 3120415012 in words is "three billion, one hundred twenty million, four hundred fifteen thousand, twelve".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 1999 2729 3998 5458 7996 10916 21989 25987 30019 35477 43978 51974 60038 70954 87956 103948 120076 141908 285857 390247 571714 780494 1143428 1560988 5455271 10910542 21821084 60007981 70918523 120015962 141837046 240031924 283674092 780103753 1560207506 3120415012