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1312030115 = 51158740639
BaseRepresentation
bin100111000110011…
…1111110110100011
310101102211000221222
41032030333312203
510141334430430
6334105205255
744341033454
oct11614776643
93342730858
101312030115
11613674710
1230749082b
1317ba8a8a6
14c637312b
157a2b99e5
hex4e33fda3

1312030115 has 16 divisors (see below), whose sum is σ = 1720535040. Its totient is φ = 952554720.

The previous prime is 1312030103. The next prime is 1312030117. The reversal of 1312030115 is 5110302131.

It is not a de Polignac number, because 1312030115 - 24 = 1312030099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312030093 and 1312030102.

It is not an unprimeable number, because it can be changed into a prime (1312030117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11966 + ... + 52604.

It is an arithmetic number, because the mean of its divisors is an integer number (107533440).

Almost surely, 21312030115 is an apocalyptic number.

1312030115 is a deficient number, since it is larger than the sum of its proper divisors (408504925).

1312030115 is a wasteful number, since it uses less digits than its factorization.

1312030115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41242.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1312030115 is about 36221.9562558402. The cubic root of 1312030115 is about 1094.7491109416.

Adding to 1312030115 its reverse (5110302131), we get a palindrome (6422332246).

The spelling of 1312030115 in words is "one billion, three hundred twelve million, thirty thousand, one hundred fifteen".

Divisors: 1 5 11 55 587 2935 6457 32285 40639 203195 447029 2235145 23855093 119275465 262406023 1312030115