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33130211243 = 82314025053
BaseRepresentation
bin11110110110101101…
…101110011110101011
310011111220100002221212
4132312231232132223
51020322313224433
623115251223335
72251666102103
oct366655563653
9104456302855
1033130211243
1113061160078
1265072a7b4b
13317ca3a2bc
141864068203
15cdd83dd48
hex7b6b6e7ab

33130211243 has 4 divisors (see below), whose sum is σ = 33134244528. Its totient is φ = 33126177960.

The previous prime is 33130211227. The next prime is 33130211267. The reversal of 33130211243 is 34211203133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34211203133 = 47727897939.

It is a cyclic number.

It is not a de Polignac number, because 33130211243 - 24 = 33130211227 is a prime.

It is a super-2 number, since 2×331302112432 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33130211273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2004296 + ... + 2020757.

It is an arithmetic number, because the mean of its divisors is an integer number (8283561132).

Almost surely, 233130211243 is an apocalyptic number.

33130211243 is a deficient number, since it is larger than the sum of its proper divisors (4033285).

33130211243 is an equidigital number, since it uses as much as digits as its factorization.

33130211243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033284.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 33130211243 its reverse (34211203133), we get a palindrome (67341414376).

The spelling of 33130211243 in words is "thirty-three billion, one hundred thirty million, two hundred eleven thousand, two hundred forty-three".

Divisors: 1 8231 4025053 33130211243