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1310203130 = 25673194681
BaseRepresentation
bin100111000011000…
…0001110011111010
310101022101012210212
41032012001303322
510140403000010
6334002111122
744316354125
oct11606016372
93338335725
101310203130
11612637005
1230694b4a2
1317b59b132
14c60193bc
157a058505
hex4e181cfa

1310203130 has 16 divisors (see below), whose sum is σ = 2361882024. Its totient is φ = 523299840.

The previous prime is 1310203129. The next prime is 1310203171. The reversal of 1310203130 is 313020131.

It can be written as a sum of positive squares in 4 ways, for example, as 575088361 + 735114769 = 23981^2 + 27113^2 .

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, 90611 + ... + 104070.

Almost surely, 21310203130 is an apocalyptic number.

1310203130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1310203130 is a deficient number, since it is larger than the sum of its proper divisors (1051678894).

1310203130 is a wasteful number, since it uses less digits than its factorization.

1310203130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195361.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1310203130 is about 36196.7281670595. The cubic root of 1310203130 is about 1094.2407335635.

Adding to 1310203130 its reverse (313020131), we get a palindrome (1623223261).

The spelling of 1310203130 in words is "one billion, three hundred ten million, two hundred three thousand, one hundred thirty".

Divisors: 1 2 5 10 673 1346 3365 6730 194681 389362 973405 1946810 131020313 262040626 655101565 1310203130