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201061705541 = 6131231266447
BaseRepresentation
bin1011101101000000110…
…1100010011101000101
3201012222100001220200212
42323100031202131011
511243233244034131
6232211054045205
720345332204304
oct2732015423505
9635870056625
10201061705541
11782a71002a4
1232b731a9805
1315c632826c8
149a350d243b
15536b793a2b
hex2ed0362745

201061705541 has 8 divisors (see below), whose sum is σ = 201554056704. Its totient is φ = 200569890960.

The previous prime is 201061705519. The next prime is 201061705561. The reversal of 201061705541 is 145507160102.

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-201061705541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201061705498 and 201061705507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201061705501) 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, 621380 + ... + 887826.

It is an arithmetic number, because the mean of its divisors is an integer number (25194257088).

Almost surely, 2201061705541 is an apocalyptic number.

It is an amenable number.

201061705541 is a deficient number, since it is larger than the sum of its proper divisors (492351163).

201061705541 is a wasteful number, since it uses less digits than its factorization.

201061705541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268291.

The product of its (nonzero) digits is 8400, while the sum is 32.

Adding to 201061705541 its reverse (145507160102), we get a palindrome (346568865643).

The spelling of 201061705541 in words is "two hundred one billion, sixty-one million, seven hundred five thousand, five hundred forty-one".

Divisors: 1 613 1231 266447 754603 163332011 327996257 201061705541