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1310420132 = 227219013517
BaseRepresentation
bin100111000011011…
…0110110010100100
310101022210020110222
41032012312302210
510140431421012
6334010503512
744321246600
oct11606666244
93338706428
101310420132
1161277504a
12306a34b98
1317b645b38
14c6074500
157a09c972
hex4e1b6ca4

1310420132 has 36 divisors (see below), whose sum is σ = 2669803164. Its totient is φ = 561153600.

The previous prime is 1310420131. The next prime is 1310420143. The reversal of 1310420132 is 2310240131.

It can be written as a sum of positive squares in 2 ways, for example, as 714279076 + 596141056 = 26726^2 + 24416^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1310420132.

It is not an unprimeable number, because it can be changed into a prime (1310420131) 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, 370838 + ... + 374354.

It is an arithmetic number, because the mean of its divisors is an integer number (74161199).

Almost surely, 21310420132 is an apocalyptic number.

It is an amenable number.

1310420132 is an abundant number, since it is smaller than the sum of its proper divisors (1359383032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1310420132 is a wasteful number, since it uses less digits than its factorization.

1310420132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436 (or 5427 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1310420132 is about 36199.7255790703. The cubic root of 1310420132 is about 1094.3011413262.

Adding to 1310420132 its reverse (2310240131), we get a palindrome (3620660263).

The spelling of 1310420132 in words is "one billion, three hundred ten million, four hundred twenty thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 49 98 196 1901 3517 3802 7034 7604 13307 14068 24619 26614 49238 53228 93149 98476 172333 186298 344666 372596 689332 6685817 13371634 26743268 46800719 93601438 187202876 327605033 655210066 1310420132