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2972375881 is a prime number
BaseRepresentation
bin1011000100101010…
…1101101101001001
321200011001100011121
42301022231231021
522041412012011
61210540155241
7133441530616
oct26112555511
97604040147
102972375881
111295912aa2
126ab538b21
13384a61ac7
14202a9550d
15125e38e71
hexb12adb49

2972375881 has 2 divisors, whose sum is σ = 2972375882. Its totient is φ = 2972375880.

The previous prime is 2972375867. The next prime is 2972375933. The reversal of 2972375881 is 1885732792.

2972375881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (2972375933) can be obtained adding 2972375881 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1760222025 + 1212153856 = 41955^2 + 34816^2 .

It is a cyclic number.

It is not a de Polignac number, because 2972375881 - 213 = 2972367689 is a prime.

It is a super-2 number, since 2×29723758812 = 17670036755901052322, which contains 22 as substring.

It is the 54520-th Hogben number.

It is not a weakly prime, because it can be changed into another prime (2972375381) by changing a digit.

It is a nontrivial repunit in base 54519.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1486187940 + 1486187941.

It is an arithmetic number, because the mean of its divisors is an integer number (1486187941).

Almost surely, 22972375881 is an apocalyptic number.

It is an amenable number.

2972375881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2972375881 is an equidigital number, since it uses as much as digits as its factorization.

2972375881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 52.

The square root of 2972375881 is about 54519.5000068783. The cubic root of 2972375881 is about 1437.8091493481.

The spelling of 2972375881 in words is "two billion, nine hundred seventy-two million, three hundred seventy-five thousand, eight hundred eighty-one".