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1310031142 = 27881106213
BaseRepresentation
bin100111000010101…
…0111110100100110
310101022001110212221
41032011113310212
510140331444032
6333554302554
744315036530
oct11605276446
93338043787
101310031142
11612529872
12306887a5a
1317b53aa74
14c5db2850
157a022597
hex4e157d26

1310031142 has 16 divisors (see below), whose sum is σ = 2248337952. Its totient is φ = 560799360.

The previous prime is 1310031109. The next prime is 1310031161. The reversal of 1310031142 is 2411300131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40773 + ... + 65440.

It is an arithmetic number, because the mean of its divisors is an integer number (140521122).

Almost surely, 21310031142 is an apocalyptic number.

1310031142 is a deficient number, since it is larger than the sum of its proper divisors (938306810).

1310031142 is a wasteful number, since it uses less digits than its factorization.

1310031142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107103.

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

The square root of 1310031142 is about 36194.3523495034. The cubic root of 1310031142 is about 1094.1928517996.

Adding to 1310031142 its reverse (2411300131), we get a palindrome (3721331273).

The spelling of 1310031142 in words is "one billion, three hundred ten million, thirty-one thousand, one hundred forty-two".

Divisors: 1 2 7 14 881 1762 6167 12334 106213 212426 743491 1486982 93573653 187147306 655015571 1310031142