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103115930 = 2510311593
BaseRepresentation
bin1100010010101…
…10110010011010
321012000211110112
412021112302122
5202344202210
614122044322
72361320351
oct611266232
9235024415
10103115930
115322a585
122a6496a2
1318494b58
14d9a2998
1590bcd05
hex6256c9a

103115930 has 8 divisors (see below), whose sum is σ = 185608692. Its totient is φ = 41246368.

The previous prime is 103115921. The next prime is 103115941. The reversal of 103115930 is 39511301.

It can be written as a sum of positive squares in 2 ways, for example, as 95863681 + 7252249 = 9791^2 + 2693^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 103115896 and 103115905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5155787 + ... + 5155806.

Almost surely, 2103115930 is an apocalyptic number.

103115930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103115930 is a deficient number, since it is larger than the sum of its proper divisors (82492762).

103115930 is a wasteful number, since it uses less digits than its factorization.

103115930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10311600.

The product of its (nonzero) digits is 405, while the sum is 23.

The square root of 103115930 is about 10154.6014200460. The cubic root of 103115930 is about 468.9306153162.

It can be divided in two parts, 1031 and 15930, that added together give a palindrome (16961).

The spelling of 103115930 in words is "one hundred three million, one hundred fifteen thousand, nine hundred thirty".

Divisors: 1 2 5 10 10311593 20623186 51557965 103115930