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10254990 = 235794327
BaseRepresentation
bin100111000111…
…101010001110
3201022000012110
4213013222032
510111124430
61003444450
7153110634
oct47075216
921260173
1010254990
1158747a9
123526726
132180955
14150d354
15d787b0
hex9c7a8e

10254990 has 32 divisors (see below), whose sum is σ = 24929280. Its totient is φ = 2699424.

The previous prime is 10254983. The next prime is 10254991. The reversal of 10254990 is 9945201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10254991) 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 15 ways as a sum of consecutive naturals, for example, 207 + ... + 4533.

It is an arithmetic number, because the mean of its divisors is an integer number (779040).

Almost surely, 210254990 is an apocalyptic number.

10254990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10254990 is an abundant number, since it is smaller than the sum of its proper divisors (14674290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10254990 is a wasteful number, since it uses less digits than its factorization.

10254990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 10254990 is about 3202.3413309640. The cubic root of 10254990 is about 217.2593189154.

The spelling of 10254990 in words is "ten million, two hundred fifty-four thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 79 158 237 395 474 790 1185 2370 4327 8654 12981 21635 25962 43270 64905 129810 341833 683666 1025499 1709165 2050998 3418330 5127495 10254990