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1633042105 = 51013322417
BaseRepresentation
bin110000101010110…
…0011111010111001
311012210212010121221
41201111203322321
511321024321410
6430013432041
755316425462
oct14125437271
94183763557
101633042105
1176889a782
12396a9b621
13200434606
14116c55d69
15985794da
hex61563eb9

1633042105 has 8 divisors (see below), whose sum is σ = 1961591112. Its totient is φ = 1305139968.

The previous prime is 1633042097. The next prime is 1633042109. The reversal of 1633042105 is 5012403361.

It can be written as a sum of positive squares in 4 ways, for example, as 290259369 + 1342782736 = 17037^2 + 36644^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1633042105 - 23 = 1633042097 is a prime.

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 1633042105.

It is not an unprimeable number, because it can be changed into a prime (1633042109) 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 7 ways as a sum of consecutive naturals, for example, 156144 + ... + 166273.

It is an arithmetic number, because the mean of its divisors is an integer number (245198889).

Almost surely, 21633042105 is an apocalyptic number.

It is an amenable number.

1633042105 is a deficient number, since it is larger than the sum of its proper divisors (328549007).

1633042105 is a wasteful number, since it uses less digits than its factorization.

1633042105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323435.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1633042105 is about 40410.9156664384. The cubic root of 1633042105 is about 1177.6036075878.

Adding to 1633042105 its reverse (5012403361), we get a palindrome (6645445466).

The spelling of 1633042105 in words is "one billion, six hundred thirty-three million, forty-two thousand, one hundred five".

Divisors: 1 5 1013 5065 322417 1612085 326608421 1633042105