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12474290 = 251247429
BaseRepresentation
bin101111100101…
…011110110010
3212110202111202
4233211132302
511143134130
61123211202
7211013123
oct57453662
925422452
1012474290
117050134
124216b02
132779b4a
14192a04a
151166145
hexbe57b2

12474290 has 8 divisors (see below), whose sum is σ = 22453740. Its totient is φ = 4989712.

The previous prime is 12474251. The next prime is 12474299. The reversal of 12474290 is 9247421.

12474290 is nontrivially palindromic in base 9.

It can be written as a sum of positive squares in 2 ways, for example, as 12453841 + 20449 = 3529^2 + 143^2 .

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

It is a super-2 number, since 2×124742902 = 311215822008200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12474299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623705 + ... + 623724.

Almost surely, 212474290 is an apocalyptic number.

12474290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12474290 is a deficient number, since it is larger than the sum of its proper divisors (9979450).

12474290 is a wasteful number, since it uses less digits than its factorization.

12474290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247436.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12474290 is about 3531.8960913368. The cubic root of 12474290 is about 231.9202188023.

The spelling of 12474290 in words is "twelve million, four hundred seventy-four thousand, two hundred ninety".

Divisors: 1 2 5 10 1247429 2494858 6237145 12474290