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10223690 = 256171657
BaseRepresentation
bin100111000000…
…000001001010
3201020102021012
4213000001022
510104124230
61003043522
7152620451
oct47000112
921212235
1010223690
115853234
1235105a2
13216c629
141501b98
15d6e395
hex9c004a

10223690 has 16 divisors (see below), whose sum is σ = 18443592. Its totient is φ = 4080384.

The previous prime is 10223671. The next prime is 10223693. The reversal of 10223690 is 9632201.

It can be written as a sum of positive squares in 4 ways, for example, as 4313929 + 5909761 = 2077^2 + 2431^2 .

It is a super-2 number, since 2×102236902 = 209047674432200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10223693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5342 + ... + 6998.

Almost surely, 210223690 is an apocalyptic number.

10223690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10223690 is a deficient number, since it is larger than the sum of its proper divisors (8219902).

10223690 is a wasteful number, since it uses less digits than its factorization.

10223690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 10223690 is about 3197.4505469202. The cubic root of 10223690 is about 217.0380560012.

Adding to 10223690 its reverse (9632201), we get a palindrome (19855891).

The spelling of 10223690 in words is "ten million, two hundred twenty-three thousand, six hundred ninety".

Divisors: 1 2 5 10 617 1234 1657 3085 3314 6170 8285 16570 1022369 2044738 5111845 10223690