[go: up one dir, main page]

Search a number
-
+
1037801381 is a prime number
BaseRepresentation
bin111101110110111…
…001011110100101
32200022210202212012
4331312321132211
54111134121011
6250551404005
734501111001
oct7566713645
92608722765
101037801381
114928a25a1
1224b683605
13137014076
149bb8b701
156119ba8b
hex3ddb97a5

1037801381 has 2 divisors, whose sum is σ = 1037801382. Its totient is φ = 1037801380.

The previous prime is 1037801371. The next prime is 1037801393. The reversal of 1037801381 is 1831087301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846228100 + 191573281 = 29090^2 + 13841^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1037801381 is a prime.

It is a super-2 number, since 2×10378013812 = 2154063412811014322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1037801341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 518900690 + 518900691.

It is an arithmetic number, because the mean of its divisors is an integer number (518900691).

Almost surely, 21037801381 is an apocalyptic number.

It is an amenable number.

1037801381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1037801381 is an equidigital number, since it uses as much as digits as its factorization.

1037801381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 1037801381 is about 32214.9248175438. The cubic root of 1037801381 is about 1012.4449412930. Note that the first 3 decimals are identical.

Adding to 1037801381 its reverse (1831087301), we get a palindrome (2868888682).

The spelling of 1037801381 in words is "one billion, thirty-seven million, eight hundred one thousand, three hundred eighty-one".