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2930020791 = 32484139317
BaseRepresentation
bin1010111010100100…
…1001000110110111
321120012100110220120
42232221021012313
522000041131131
61202424303023
7132415523445
oct25651110667
97505313816
102930020791
111273a13a95
12699311a73
13379052319
141db1cbb95
1512236e496
hexaea491b7

2930020791 has 8 divisors (see below), whose sum is σ = 3906951024. Its totient is φ = 1953218880.

The previous prime is 2930020789. The next prime is 2930020811. The reversal of 2930020791 is 1970200392.

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

It is not a de Polignac number, because 2930020791 - 21 = 2930020789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2930020721) 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, 54865 + ... + 94181.

It is an arithmetic number, because the mean of its divisors is an integer number (488368878).

Almost surely, 22930020791 is an apocalyptic number.

2930020791 is a deficient number, since it is larger than the sum of its proper divisors (976930233).

2930020791 is a wasteful number, since it uses less digits than its factorization.

2930020791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64161.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 2930020791 is about 54129.6664593456. Note that the first 3 decimals coincide. The cubic root of 2930020791 is about 1430.9470621766.

The spelling of 2930020791 in words is "two billion, nine hundred thirty million, twenty thousand, seven hundred ninety-one".

Divisors: 1 3 24841 39317 74523 117951 976673597 2930020791