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33030324431 = 132540794187
BaseRepresentation
bin11110110000110000…
…101100000011001111
310011020221101100000022
4132300300230003033
51020121230340211
623101322252355
72246344060646
oct366060540317
9104227340008
1033030324431
111300a836695
1264999570bb
133165136190
141854aa635d
15cd4bacbdb
hex7b0c2c0cf

33030324431 has 4 divisors (see below), whose sum is σ = 35571118632. Its totient is φ = 30489530232.

The previous prime is 33030324407. The next prime is 33030324443. The reversal of 33030324431 is 13442303033.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13442303033 = 61432188231.

It is a cyclic number.

It is not a de Polignac number, because 33030324431 - 210 = 33030323407 is a prime.

It is a super-2 number, since 2×330303244312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33030324431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33030324491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270397081 + ... + 1270397106.

It is an arithmetic number, because the mean of its divisors is an integer number (8892779658).

Almost surely, 233030324431 is an apocalyptic number.

33030324431 is a deficient number, since it is larger than the sum of its proper divisors (2540794201).

33030324431 is a wasteful number, since it uses less digits than its factorization.

33030324431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540794200.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 33030324431 its reverse (13442303033), we get a palindrome (46472627464).

The spelling of 33030324431 in words is "thirty-three billion, thirty million, three hundred twenty-four thousand, four hundred thirty-one".

Divisors: 1 13 2540794187 33030324431