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3120249993 = 37712092723
BaseRepresentation
bin1011100111111011…
…0011110010001001
322001110022010022120
42321332303302021
522342240444433
61233341441453
7140215454520
oct27176636211
98043263276
103120249993
111361333003
12730b70289
133a9598193
142185894b7
15133de87b3
hexb9fb3c89

3120249993 has 16 divisors (see below), whose sum is σ = 4821636096. Its totient is φ = 1757886480.

The previous prime is 3120249991. The next prime is 3120250013. The reversal of 3120249993 is 3999420213.

It is not a de Polignac number, because 3120249993 - 21 = 3120249991 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3120249991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1044871 + ... + 1047852.

It is an arithmetic number, because the mean of its divisors is an integer number (301352256).

Almost surely, 23120249993 is an apocalyptic number.

It is an amenable number.

3120249993 is a deficient number, since it is larger than the sum of its proper divisors (1701386103).

3120249993 is a wasteful number, since it uses less digits than its factorization.

3120249993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092804.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 3120249993 is about 55859.1979265725. The cubic root of 3120249993 is about 1461.2677412222.

The spelling of 3120249993 in words is "three billion, one hundred twenty million, two hundred forty-nine thousand, nine hundred ninety-three".

Divisors: 1 3 7 21 71 213 497 1491 2092723 6278169 14649061 43947183 148583333 445749999 1040083331 3120249993