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200020810601 = 1931741595277
BaseRepresentation
bin1011101001001000101…
…0110101101101101001
3201010021210102222021102
42322102022311231221
511234120311414401
6231515512051145
720310462560213
oct2722212655551
9633253388242
10200020810601
1177912595547
1232922693ab5
1315b28727541
149976b7b5b3
15530a1d556b
hex2e922b5b69

200020810601 has 8 divisors (see below), whose sum is σ = 201173009544. Its totient is φ = 198869806080.

The previous prime is 200020810579. The next prime is 200020810607. The reversal of 200020810601 is 106018020002.

It can be written as a sum of positive squares in 4 ways, for example, as 23524197376 + 176496613225 = 153376^2 + 420115^2 .

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 200020810601 - 210 = 200020809577 is a prime.

It is a super-2 number, since 2×2000208106012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200020810607) 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, 38375 + ... + 633651.

It is an arithmetic number, because the mean of its divisors is an integer number (25146626193).

Almost surely, 2200020810601 is an apocalyptic number.

It is an amenable number.

200020810601 is a deficient number, since it is larger than the sum of its proper divisors (1152198943).

200020810601 is a wasteful number, since it uses less digits than its factorization.

200020810601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597211.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 200020810601 its reverse (106018020002), we get a palindrome (306038830603).

The spelling of 200020810601 in words is "two hundred billion, twenty million, eight hundred ten thousand, six hundred one".

Divisors: 1 193 1741 336013 595277 114888461 1036377257 200020810601