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1310413120 = 2659534297
BaseRepresentation
bin100111000011011…
…0101000101000000
310101022202212212021
41032012311011000
510140431204440
6334010411224
744321220262
oct11606650500
93338685767
101310413120
1161276a855
12306a30b14
1317b6428a3
14c6071b32
157a09a84a
hex4e1b5140

1310413120 has 56 divisors (see below), whose sum is σ = 3124422504. Its totient is φ = 523493376.

The previous prime is 1310413103. The next prime is 1310413129. The reversal of 1310413120 is 213140131.

It can be written as a sum of positive squares in 4 ways, for example, as 112699456 + 1197713664 = 10616^2 + 34608^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1310413094 and 1310413103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310413129) 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, 302812 + ... + 307108.

It is an arithmetic number, because the mean of its divisors is an integer number (55793259).

Almost surely, 21310413120 is an apocalyptic number.

1310413120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310413120 is an abundant number, since it is smaller than the sum of its proper divisors (1814009384).

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

1310413120 is an equidigital number, since it uses as much as digits as its factorization.

1310413120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5267 (or 5257 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1310413120 is about 36199.6287273779. The cubic root of 1310413120 is about 1094.2991894704.

Adding to 1310413120 its reverse (213140131), we get a palindrome (1523553251).

The spelling of 1310413120 in words is "one billion, three hundred ten million, four hundred thirteen thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 953 1906 3812 4297 4765 7624 8594 9530 15248 17188 19060 21485 30496 34376 38120 42970 60992 68752 76240 85940 137504 152480 171880 275008 304960 343760 687520 1375040 4095041 8190082 16380164 20475205 32760328 40950410 65520656 81900820 131041312 163801640 262082624 327603280 655206560 1310413120