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2899442831 = 4721312559
BaseRepresentation
bin1010110011010001…
…1111110010001111
321111001210221211112
42230310133302033
521414224132311
61155413042235
7131564600045
oct25464376217
97431727745
102899442831
11125872934a
1268b02637b
1337290725c
141d710c395
1511e82e28b
hexacd1fc8f

2899442831 has 6 divisors (see below), whose sum is σ = 2962447920. Its totient is φ = 2837750396.

The previous prime is 2899442809. The next prime is 2899442849. The reversal of 2899442831 is 1382449982.

It is not a de Polignac number, because 2899442831 - 214 = 2899426447 is a prime.

It is a super-2 number, since 2×28994428312 = 16813537460474589122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2899442831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2899444831) 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 5 ways as a sum of consecutive naturals, for example, 654071 + ... + 658488.

It is an arithmetic number, because the mean of its divisors is an integer number (493741320).

Almost surely, 22899442831 is an apocalyptic number.

2899442831 is a deficient number, since it is larger than the sum of its proper divisors (63005089).

2899442831 is an equidigital number, since it uses as much as digits as its factorization.

2899442831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312653 (or 1312606 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 2899442831 is about 53846.4746385499. The cubic root of 2899442831 is about 1425.9518140477.

The spelling of 2899442831 in words is "two billion, eight hundred ninety-nine million, four hundred forty-two thousand, eight hundred thirty-one".

Divisors: 1 47 2209 1312559 61690273 2899442831