Search a number
-
+
33044243231 is a prime number
BaseRepresentation
bin11110110001100101…
…110010001100011111
310011021220120111000102
4132301211302030133
51020133311240411
623102540451315
72246603301356
oct366145621437
9104256514012
1033044243231
111301768302a
1264a2549b3b
133167c9a65c
14185688a99d
15cd600bd3b
hex7b197231f

33044243231 has 2 divisors, whose sum is σ = 33044243232. Its totient is φ = 33044243230.

The previous prime is 33044243207. The next prime is 33044243237. The reversal of 33044243231 is 13234244033.

It is a strong prime.

It is an emirp because it is prime and its reverse (13234244033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33044243231 - 214 = 33044226847 is a prime.

It is a super-2 number, since 2×330442432312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33044243194 and 33044243203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33044243237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16522121615 + 16522121616.

It is an arithmetic number, because the mean of its divisors is an integer number (16522121616).

Almost surely, 233044243231 is an apocalyptic number.

33044243231 is a deficient number, since it is larger than the sum of its proper divisors (1).

33044243231 is an equidigital number, since it uses as much as digits as its factorization.

33044243231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 33044243231 its reverse (13234244033), we get a palindrome (46278487264).

The spelling of 33044243231 in words is "thirty-three billion, forty-four million, two hundred forty-three thousand, two hundred thirty-one".