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72210116701 = 1811593725033
BaseRepresentation
bin100001101000000001…
…1101111000001011101
320220101110002000000201
41003100003233001131
52140341242213301
653101201223501
75134301602402
oct1032003570135
9226343060021
1072210116701
11286958014a8
1211bb3031b91
136a6a2aba08
1436d03682a9
151d2967a201
hex10d00ef05d

72210116701 has 8 divisors (see below), whose sum is σ = 72616524344. Its totient is φ = 71803791360.

The previous prime is 72210116681. The next prime is 72210116723. The reversal of 72210116701 is 10761101227.

It can be written as a sum of positive squares in 4 ways, for example, as 455779801 + 71754336900 = 21349^2 + 267870^2 .

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 72210116701 - 221 = 72208019549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72210116701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72210116791) 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, 2872081 + ... + 2897113.

It is an arithmetic number, because the mean of its divisors is an integer number (9077065543).

Almost surely, 272210116701 is an apocalyptic number.

It is an amenable number.

72210116701 is a deficient number, since it is larger than the sum of its proper divisors (406407643).

72210116701 is a wasteful number, since it uses less digits than its factorization.

72210116701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41151.

The product of its (nonzero) digits is 1176, while the sum is 28.

Adding to 72210116701 its reverse (10761101227), we get a palindrome (82971217928).

The spelling of 72210116701 in words is "seventy-two billion, two hundred ten million, one hundred sixteen thousand, seven hundred one".

Divisors: 1 181 15937 25033 2884597 4530973 398950921 72210116701