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20010030033 = 374123240453
BaseRepresentation
bin10010101000101100…
…001101001111010001
31220122112101211212110
4102220230031033101
5311440031430113
613105324215533
71305603306660
oct225054151721
956575354773
1020010030033
11853915a804
123a6539a5a9
131b6b7aa076
14d7b776dd7
157c1a9cbc3
hex4a8b0d3d1

20010030033 has 16 divisors (see below), whose sum is σ = 31235170176. Its totient is φ = 11155416960.

The previous prime is 20010030011. The next prime is 20010030037. The reversal of 20010030033 is 33003001002.

It is a happy number.

It is not a de Polignac number, because 20010030033 - 29 = 20010029521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20010030037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11619366 + ... + 11621087.

It is an arithmetic number, because the mean of its divisors is an integer number (1952198136).

Almost surely, 220010030033 is an apocalyptic number.

It is an amenable number.

20010030033 is a deficient number, since it is larger than the sum of its proper divisors (11225140143).

20010030033 is a wasteful number, since it uses less digits than its factorization.

20010030033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23240504.

The product of its (nonzero) digits is 54, while the sum is 12.

Adding to 20010030033 its reverse (33003001002), we get a palindrome (53013031035).

The spelling of 20010030033 in words is "twenty billion, ten million, thirty thousand, thirty-three".

Divisors: 1 3 7 21 41 123 287 861 23240453 69721359 162683171 488049513 952858573 2858575719 6670010011 20010030033