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33031421041 = 311065529711
BaseRepresentation
bin11110110000110100…
…110111110001110001
310011021000110001021111
4132300310313301301
51020122020433131
623101401553321
72246356306033
oct366064676161
9104230401244
1033031421041
1113010415583
12649a1a5841
13316542b368
141854cadc53
15cd4d27ab1
hex7b0d37c71

33031421041 has 4 divisors (see below), whose sum is σ = 34096950784. Its totient is φ = 31965891300.

The previous prime is 33031421023. The next prime is 33031421117. The reversal of 33031421041 is 14012413033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14012413033 = 46330264391.

It is a cyclic number.

It is not a de Polignac number, because 33031421041 - 27 = 33031420913 is a prime.

It is a super-5 number, since 5×330314210415 (a number of 54 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33031421011) 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, 532764825 + ... + 532764886.

It is an arithmetic number, because the mean of its divisors is an integer number (8524237696).

Almost surely, 233031421041 is an apocalyptic number.

33031421041 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

33031421041 is a deficient number, since it is larger than the sum of its proper divisors (1065529743).

33031421041 is a wasteful number, since it uses less digits than its factorization.

33031421041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065529742.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 33031421041 its reverse (14012413033), we get a palindrome (47043834074).

The spelling of 33031421041 in words is "thirty-three billion, thirty-one million, four hundred twenty-one thousand, forty-one".

Divisors: 1 31 1065529711 33031421041