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108904490 = 2510890449
BaseRepresentation
bin1100111110111…
…00000000101010
321120220220212122
412133130000222
5210334420430
614450111242
72461446542
oct637340052
9246826778
10108904490
1156523612
123057b522
1319740836
141066c322
159862ee5
hex67dc02a

108904490 has 8 divisors (see below), whose sum is σ = 196028100. Its totient is φ = 43561792.

The previous prime is 108904441. The next prime is 108904511. The reversal of 108904490 is 94409801.

It can be written as a sum of positive squares in 2 ways, for example, as 87179569 + 21724921 = 9337^2 + 4661^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 108904490.

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, 5445215 + ... + 5445234.

Almost surely, 2108904490 is an apocalyptic number.

108904490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108904490 is a deficient number, since it is larger than the sum of its proper divisors (87123610).

108904490 is a wasteful number, since it uses less digits than its factorization.

108904490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10890456.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 108904490 is about 10435.7314070457. The cubic root of 108904490 is about 477.5460551505.

The spelling of 108904490 in words is "one hundred eight million, nine hundred four thousand, four hundred ninety".

Divisors: 1 2 5 10 10890449 21780898 54452245 108904490