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10230640 = 245718269
BaseRepresentation
bin100111000001…
…101101110000
3201020202210121
4213001231300
510104340030
61003140024
7152646640
oct47015560
921222717
1010230640
115858482
123514614
132172844
141504520
15d7147a
hex9c1b70

10230640 has 40 divisors (see below), whose sum is σ = 27185760. Its totient is φ = 3507456.

The previous prime is 10230629. The next prime is 10230641. The reversal of 10230640 is 4603201.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10230641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8575 + ... + 9694.

It is an arithmetic number, because the mean of its divisors is an integer number (679644).

Almost surely, 210230640 is an apocalyptic number.

10230640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10230640 is an abundant number, since it is smaller than the sum of its proper divisors (16955120).

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

10230640 is a wasteful number, since it uses less digits than its factorization.

10230640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18289 (or 18283 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 10230640 is about 3198.5371656431. The cubic root of 10230640 is about 217.0872252286.

Adding to 10230640 its reverse (4603201), we get a palindrome (14833841).

The spelling of 10230640 in words is "ten million, two hundred thirty thousand, six hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 18269 36538 73076 91345 127883 146152 182690 255766 292304 365380 511532 639415 730760 1023064 1278830 1461520 2046128 2557660 5115320 10230640