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103012099 = 211488209
BaseRepresentation
bin1100010001111…
…01011100000011
321011211120000221
412020331130003
5202332341344
614115523511
72360405551
oct610753403
9234746027
10103012099
1153169573
122a5b9597
1318459808
14d976bd1
15909c184
hex623d703

103012099 has 4 divisors (see below), whose sum is σ = 103500520. Its totient is φ = 102523680.

The previous prime is 103012097. The next prime is 103012121. The reversal of 103012099 is 990210301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990210301 = 1675929403.

It is a cyclic number.

It is not a de Polignac number, because 103012099 - 21 = 103012097 is a prime.

It is a super-2 number, since 2×1030120992 = 21222985080771602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103012093) by changing a digit.

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, 243894 + ... + 244315.

It is an arithmetic number, because the mean of its divisors is an integer number (25875130).

Almost surely, 2103012099 is an apocalyptic number.

103012099 is a deficient number, since it is larger than the sum of its proper divisors (488421).

103012099 is an equidigital number, since it uses as much as digits as its factorization.

103012099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488420.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 103012099 is about 10149.4876225354. The cubic root of 103012099 is about 468.7731683008.

The spelling of 103012099 in words is "one hundred three million, twelve thousand, ninety-nine".

Divisors: 1 211 488209 103012099