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10061881 is a prime number
BaseRepresentation
bin100110011000…
…100000111001
3200221012022021
4212120200321
510033440011
6555354441
7151344634
oct46304071
920835267
1010061881
115752705
123452a21
132113a9b
14149cc1b
15d3b471
hex998839

10061881 has 2 divisors, whose sum is σ = 10061882. Its totient is φ = 10061880.

The previous prime is 10061867. The next prime is 10061911. The reversal of 10061881 is 18816001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6125625 + 3936256 = 2475^2 + 1984^2 .

It is a cyclic number.

It is not a de Polignac number, because 10061881 - 29 = 10061369 is a prime.

It is a super-2 number, since 2×100618812 = 202482898516322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10061861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030940 + 5030941.

It is an arithmetic number, because the mean of its divisors is an integer number (5030941).

Almost surely, 210061881 is an apocalyptic number.

It is an amenable number.

10061881 is a deficient number, since it is larger than the sum of its proper divisors (1).

10061881 is an equidigital number, since it uses as much as digits as its factorization.

10061881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 10061881 is about 3172.0468155436. The cubic root of 10061881 is about 215.8869507310.

Adding to 10061881 its reverse (18816001), we get a palindrome (28877882).

The spelling of 10061881 in words is "ten million, sixty-one thousand, eight hundred eighty-one".