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1310208050 = 25251192
BaseRepresentation
bin100111000011000…
…0011000000110010
310101022101110120002
41032012003000302
510140403124200
6334002150002
744316404354
oct11606030062
93338343502
101310208050
1161263a778
12306952302
1317b5a0448
14c601b0d4
157a059bd5
hex4e183032

1310208050 has 18 divisors (see below), whose sum is σ = 2437463133. Its totient is φ = 523980840.

The previous prime is 1310208047. The next prime is 1310208077. The reversal of 1310208050 is 508020131.

It can be written as a sum of positive squares in 2 ways, for example, as 1284003889 + 26204161 = 35833^2 + 5119^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=25595.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 253391 + ... + 258509.

Almost surely, 21310208050 is an apocalyptic number.

1310208050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1310208050 is a deficient number, since it is larger than the sum of its proper divisors (1127255083).

1310208050 is an frugal number, since it uses more digits than its factorization.

1310208050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10250 (or 5126 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1310208050 is about 36196.7961289394. The cubic root of 1310208050 is about 1094.2421032385.

Adding to 1310208050 its reverse (508020131), we get a palindrome (1818228181).

The spelling of 1310208050 in words is "one billion, three hundred ten million, two hundred eight thousand, fifty".

Divisors: 1 2 5 10 25 50 5119 10238 25595 51190 127975 255950 26204161 52408322 131020805 262041610 655104025 1310208050