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68788201 = 412151271
BaseRepresentation
bin1000001100110…
…01111111101001
311210102210200011
410012121333221
5120102210301
610454211521
71463455456
oct406317751
9153383604
1068788201
1135913659
121b053ba1
13113360a1
1491c882d
15608ba51
hex4199fe9

68788201 has 12 divisors (see below), whose sum is σ = 71235712. Its totient is φ = 66420000.

The previous prime is 68788199. The next prime is 68788243. The reversal of 68788201 is 10288786.

It is not a de Polignac number, because 68788201 - 21 = 68788199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68788301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253696 + ... + 253966.

Almost surely, 268788201 is an apocalyptic number.

It is an amenable number.

68788201 is a deficient number, since it is larger than the sum of its proper divisors (2447511).

68788201 is a wasteful number, since it uses less digits than its factorization.

68788201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 68788201 is about 8293.8652629519. The cubic root of 68788201 is about 409.7364973526.

It can be divided in two parts, 687 and 88201, that added together give a palindrome (88888).

The spelling of 68788201 in words is "sixty-eight million, seven hundred eighty-eight thousand, two hundred one".

Divisors: 1 41 151 271 1681 6191 11111 40921 253831 455551 1677761 68788201