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33016217429 = 1317149394649
BaseRepresentation
bin11110101111111010…
…110111111101010101
310011012221211121211202
4132233322313331111
51020104122424204
623100100042245
72246113134446
oct365772677525
9104187747752
1033016217429
1113002880908
126495093385
133162237140
141852c732cd
15cd3822e1e
hex7afeb7f55

33016217429 has 8 divisors (see below), whose sum is σ = 37647451800. Its totient is φ = 28683772416.

The previous prime is 33016217413. The next prime is 33016217449. The reversal of 33016217429 is 92471261033.

It can be written as a sum of positive squares in 4 ways, for example, as 4784488900 + 28231728529 = 69170^2 + 168023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33016217429 - 24 = 33016217413 is a prime.

It is a super-2 number, since 2×330162174292 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33016217392 and 33016217401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33016217449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74697104 + ... + 74697545.

It is an arithmetic number, because the mean of its divisors is an integer number (4705931475).

Almost surely, 233016217429 is an apocalyptic number.

It is an amenable number.

33016217429 is a deficient number, since it is larger than the sum of its proper divisors (4631234371).

33016217429 is a wasteful number, since it uses less digits than its factorization.

33016217429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149394679.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 33016217429 in words is "thirty-three billion, sixteen million, two hundred seventeen thousand, four hundred twenty-nine".

Divisors: 1 13 17 221 149394649 1942130437 2539709033 33016217429