Search a number
-
+
31949125034663 is a prime number
BaseRepresentation
bin1110100001110101111000…
…01111111010001010100111
311012010022021110022121000202
413100322330033322022213
513141423302002102123
6151541120405101115
76505151050001204
oct720727417721247
9135108243277022
1031949125034663
11a1a8603196441
1236bbb553b779b
1314a9a35894125
147c64bb228cab
153a610b6cca28
hex1d0ebc3fa2a7

31949125034663 has 2 divisors, whose sum is σ = 31949125034664. Its totient is φ = 31949125034662.

The previous prime is 31949125034641. The next prime is 31949125034689. The reversal of 31949125034663 is 36643052194913.

It is a weak prime.

It is an emirp because it is prime and its reverse (36643052194913) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31949125034663 - 216 = 31949124969127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31949125034599 and 31949125034608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31949125034863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15974562517331 + 15974562517332.

It is an arithmetic number, because the mean of its divisors is an integer number (15974562517332).

Almost surely, 231949125034663 is an apocalyptic number.

31949125034663 is a deficient number, since it is larger than the sum of its proper divisors (1).

31949125034663 is an equidigital number, since it uses as much as digits as its factorization.

31949125034663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12597120, while the sum is 56.

It can be divided in two parts, 319491250 and 34663, that added together give a palindrome (319525913).

The spelling of 31949125034663 in words is "thirty-one trillion, nine hundred forty-nine billion, one hundred twenty-five million, thirty-four thousand, six hundred sixty-three".