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10387955 = 52077591
BaseRepresentation
bin100111101000…
…000111110011
3201112202121002
4213220013303
510124403310
61010352215
7154203404
oct47500763
921482532
1010387955
115955696
12358b66b
1321c9326
1415459ab
15da2da5
hex9e81f3

10387955 has 4 divisors (see below), whose sum is σ = 12465552. Its totient is φ = 8310360.

The previous prime is 10387919. The next prime is 10387961. The reversal of 10387955 is 55978301.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10387955 - 26 = 10387891 is a prime.

It is a Duffinian number.

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, 1038791 + ... + 1038800.

It is an arithmetic number, because the mean of its divisors is an integer number (3116388).

Almost surely, 210387955 is an apocalyptic number.

10387955 is a deficient number, since it is larger than the sum of its proper divisors (2077597).

10387955 is an equidigital number, since it uses as much as digits as its factorization.

10387955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077596.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 10387955 is about 3223.0350603119. The cubic root of 10387955 is about 218.1942759353.

The spelling of 10387955 in words is "ten million, three hundred eighty-seven thousand, nine hundred fifty-five".

Divisors: 1 5 2077591 10387955