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1310213130 = 23549938747
BaseRepresentation
bin100111000011000…
…0100010000001010
310101022101201112020
41032012010100022
510140403310010
6334002225310
744316425232
oct11606042012
93338351466
101310213130
11612643576
12306955236
1317b5a2855
14c601ccc2
157a05b470
hex4e18440a

1310213130 has 32 divisors (see below), whose sum is σ = 3145500864. Its totient is φ = 349280256.

The previous prime is 1310213111. The next prime is 1310213131. The reversal of 1310213130 is 313120131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1310213131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145417 + ... + 154163.

It is an arithmetic number, because the mean of its divisors is an integer number (98296902).

Almost surely, 21310213130 is an apocalyptic number.

1310213130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1310213130 is an abundant number, since it is smaller than the sum of its proper divisors (1835287734).

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

1310213130 is a wasteful number, since it uses less digits than its factorization.

1310213130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13750.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1310213130 is about 36196.8663008278. The cubic root of 1310213130 is about 1094.2435174523.

Adding to 1310213130 its reverse (313120131), we get a palindrome (1623333261).

The spelling of 1310213130 in words is "one billion, three hundred ten million, two hundred thirteen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 4993 8747 9986 14979 17494 24965 26241 29958 43735 49930 52482 74895 87470 131205 149790 262410 43673771 87347542 131021313 218368855 262042626 436737710 655106565 1310213130