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20010033131 = 1116073113177
BaseRepresentation
bin10010101000101100…
…001101111111101011
31220122112102000010012
4102220230031333223
5311440032030011
613105324242135
71305603322004
oct225054157753
956575360105
1020010033131
118539162070
123a653a034b
131b6b7ab5ba
14d7b7781ab
157c1a9da8b
hex4a8b0dfeb

20010033131 has 8 divisors (see below), whose sum is σ = 21830678064. Its totient is φ = 18189646720.

The previous prime is 20010033119. The next prime is 20010033157. The reversal of 20010033131 is 13133001002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20010033131 is a prime.

It is a super-2 number, since 2×200100331312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010003131) 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, 120215 + ... + 233391.

It is an arithmetic number, because the mean of its divisors is an integer number (2728834758).

Almost surely, 220010033131 is an apocalyptic number.

20010033131 is a deficient number, since it is larger than the sum of its proper divisors (1820644933).

20010033131 is a wasteful number, since it uses less digits than its factorization.

20010033131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129261.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 20010033131 its reverse (13133001002), we get a palindrome (33143034133).

The spelling of 20010033131 in words is "twenty billion, ten million, thirty-three thousand, one hundred thirty-one".

Divisors: 1 11 16073 113177 176803 1244947 1819093921 20010033131