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2993873831 = 13230297987
BaseRepresentation
bin1011001001110010…
…1110001110100111
321201122111112210222
42302130232032213
522112412430311
61213025034555
7134122336064
oct26234561647
97648445728
102993873831
1112a6a667a3
126b6785a5b
1338934aca0
1420588dc6b
15127c83adb
hexb272e3a7

2993873831 has 4 divisors (see below), whose sum is σ = 3224171832. Its totient is φ = 2763575832.

The previous prime is 2993873809. The next prime is 2993873843. The reversal of 2993873831 is 1383783992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2993873831 - 222 = 2989679527 is a prime.

It is a super-2 number, since 2×29938738312 = 17926561031893233122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2993873801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115148981 + ... + 115149006.

It is an arithmetic number, because the mean of its divisors is an integer number (806042958).

Almost surely, 22993873831 is an apocalyptic number.

2993873831 is a deficient number, since it is larger than the sum of its proper divisors (230298001).

2993873831 is a wasteful number, since it uses less digits than its factorization.

2993873831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230298000.

The product of its digits is 1959552, while the sum is 53.

The square root of 2993873831 is about 54716.3031554582. The cubic root of 2993873831 is about 1441.2671830172.

The spelling of 2993873831 in words is "two billion, nine hundred ninety-three million, eight hundred seventy-three thousand, eight hundred thirty-one".

Divisors: 1 13 230297987 2993873831