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130217751 = 3261323603
BaseRepresentation
bin1111100001011…
…11011100010111
3100002000202011200
413300233130113
5231313432001
620531003543
73140555406
oct760573427
9302022150
10130217751
1167560584
12377395b3
1320c93931
141341963d
15b673086
hex7c2f717

130217751 has 12 divisors (see below), whose sum is σ = 188407128. Its totient is φ = 86666544.

The previous prime is 130217723. The next prime is 130217771. The reversal of 130217751 is 157712031.

It is a happy number.

It is not a de Polignac number, because 130217751 - 26 = 130217687 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130217771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6285 + ... + 17318.

It is an arithmetic number, because the mean of its divisors is an integer number (15700594).

Almost surely, 2130217751 is an apocalyptic number.

130217751 is a deficient number, since it is larger than the sum of its proper divisors (58189377).

130217751 is a wasteful number, since it uses less digits than its factorization.

130217751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24222 (or 24219 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 130217751 is about 11411.2992687073. The cubic root of 130217751 is about 506.8623857687.

Adding to 130217751 its reverse (157712031), we get a palindrome (287929782).

The spelling of 130217751 in words is "one hundred thirty million, two hundred seventeen thousand, seven hundred fifty-one".

Divisors: 1 3 9 613 1839 5517 23603 70809 212427 14468639 43405917 130217751