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1310211343 = 72197135731
BaseRepresentation
bin100111000011000…
…0011110100001111
310101022101122002001
41032012003310033
510140403230333
6334002213131
744316420100
oct11606036417
93338348061
101310211343
116126421a1
123069541a7
1317b5a1aac
14c601c3a7
157a05ab7d
hex4e183d0f

1310211343 has 12 divisors (see below), whose sum is σ = 1531871352. Its totient is φ = 1117329360.

The previous prime is 1310211341. The next prime is 1310211349. The reversal of 1310211343 is 3431120131.

It is not a de Polignac number, because 1310211343 - 21 = 1310211341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1310211343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310211341) 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, 58213 + ... + 77518.

It is an arithmetic number, because the mean of its divisors is an integer number (127655946).

Almost surely, 21310211343 is an apocalyptic number.

1310211343 is a deficient number, since it is larger than the sum of its proper divisors (221660009).

1310211343 is a wasteful number, since it uses less digits than its factorization.

1310211343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135942 (or 135935 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1310211343 is about 36196.8416163621. The cubic root of 1310211343 is about 1094.2430199724.

Adding to 1310211343 its reverse (3431120131), we get a palindrome (4741331474).

The spelling of 1310211343 in words is "one billion, three hundred ten million, two hundred eleven thousand, three hundred forty-three".

Divisors: 1 7 49 197 1379 9653 135731 950117 6650819 26739007 187173049 1310211343