Search a number
-
+
200860798681 is a prime number
BaseRepresentation
bin1011101100010000111…
…1001000111011011001
3201012110100000210022001
42323010033020323121
511242330331024211
6232135120001001
720340342422104
oct2730417107331
9635410023261
10200860798681
1178203758a74
1232b17a60161
1315c3076b6ca
149a1655573b
155358d0aac1
hex2ec43c8ed9

200860798681 has 2 divisors, whose sum is σ = 200860798682. Its totient is φ = 200860798680.

The previous prime is 200860798657. The next prime is 200860798727. The reversal of 200860798681 is 186897068002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112482427456 + 88378371225 = 335384^2 + 297285^2 .

It is a cyclic number.

It is not a de Polignac number, because 200860798681 - 29 = 200860798169 is a prime.

It is a super-2 number, since 2×2008607986812 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200860796681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100430399340 + 100430399341.

It is an arithmetic number, because the mean of its divisors is an integer number (100430399341).

Almost surely, 2200860798681 is an apocalyptic number.

It is an amenable number.

200860798681 is a deficient number, since it is larger than the sum of its proper divisors (1).

200860798681 is an equidigital number, since it uses as much as digits as its factorization.

200860798681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 200860798681 in words is "two hundred billion, eight hundred sixty million, seven hundred ninety-eight thousand, six hundred eighty-one".