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20010133213 = 713032193853
BaseRepresentation
bin10010101000101100…
…100110011011011101
31220122112121002101221
4102220230212123131
5311440043230323
613105330333341
71305604216540
oct225054463335
956575532357
1020010133213
118539220284
123a6542a251
131b6b815015
14d7b7a2857
157c1abd55d
hex4a8b266dd

20010133213 has 8 divisors (see below), whose sum is σ = 22886284928. Its totient is φ = 17138371824.

The previous prime is 20010133211. The next prime is 20010133223. The reversal of 20010133213 is 31233101002.

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

It is not a de Polignac number, because 20010133213 - 21 = 20010133211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010133211) 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, 1087806 + ... + 1106047.

It is an arithmetic number, because the mean of its divisors is an integer number (2860785616).

Almost surely, 220010133213 is an apocalyptic number.

It is an amenable number.

20010133213 is a deficient number, since it is larger than the sum of its proper divisors (2876151715).

20010133213 is a wasteful number, since it uses less digits than its factorization.

20010133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195163.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20010133213 its reverse (31233101002), we get a palindrome (51243234215).

The spelling of 20010133213 in words is "twenty billion, ten million, one hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 7 1303 9121 2193853 15356971 2858590459 20010133213