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10128290 = 251012829
BaseRepresentation
bin100110101000…
…101110100010
3201001120101212
4212220232202
510043101130
61001030122
7152042354
oct46505642
921046355
1010128290
115798597
123485342
132138093
1414b90d4
15d50e95
hex9a8ba2

10128290 has 8 divisors (see below), whose sum is σ = 18230940. Its totient is φ = 4051312.

The previous prime is 10128281. The next prime is 10128301. The reversal of 10128290 is 9282101.

It can be written as a sum of positive squares in 2 ways, for example, as 8254129 + 1874161 = 2873^2 + 1369^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506405 + ... + 506424.

Almost surely, 210128290 is an apocalyptic number.

10128290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10128290 is a deficient number, since it is larger than the sum of its proper divisors (8102650).

10128290 is a wasteful number, since it uses less digits than its factorization.

10128290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012836.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 10128290 is about 3182.4974469746. The cubic root of 10128290 is about 216.3608651127.

The spelling of 10128290 in words is "ten million, one hundred twenty-eight thousand, two hundred ninety".

Divisors: 1 2 5 10 1012829 2025658 5064145 10128290