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103072947 = 389386041
BaseRepresentation
bin1100010010011…
…00010010110011
321011221122111120
412021030102303
5202341313242
614121113323
72361051135
oct611142263
9234848446
10103072947
115320025a
122a628843
131847b413
14d991055
1590b01ec
hex624c4b3

103072947 has 8 divisors (see below), whose sum is σ = 138975120. Its totient is φ = 67943040.

The previous prime is 103072939. The next prime is 103072951. The reversal of 103072947 is 749270301.

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

It is not a de Polignac number, because 103072947 - 23 = 103072939 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (103072987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192754 + ... + 193287.

It is an arithmetic number, because the mean of its divisors is an integer number (17371890).

Almost surely, 2103072947 is an apocalyptic number.

103072947 is a deficient number, since it is larger than the sum of its proper divisors (35902173).

103072947 is an equidigital number, since it uses as much as digits as its factorization.

103072947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386133.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 103072947 is about 10152.4847697497. The cubic root of 103072947 is about 468.8654496788.

The spelling of 103072947 in words is "one hundred three million, seventy-two thousand, nine hundred forty-seven".

Divisors: 1 3 89 267 386041 1158123 34357649 103072947