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12199630 = 251219963
BaseRepresentation
bin101110100010…
…011011001110
3211221210202011
4232202123032
511110342010
61113251434
7205460302
oct56423316
924853664
1012199630
116982843
124103b7a
1326b1b21
141897d02
15110ea8a
hexba26ce

12199630 has 8 divisors (see below), whose sum is σ = 21959352. Its totient is φ = 4879848.

The previous prime is 12199609. The next prime is 12199643. The reversal of 12199630 is 3699121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12199592 and 12199601.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 609972 + ... + 609991.

It is an arithmetic number, because the mean of its divisors is an integer number (2744919).

Almost surely, 212199630 is an apocalyptic number.

12199630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12199630 is a deficient number, since it is larger than the sum of its proper divisors (9759722).

12199630 is a wasteful number, since it uses less digits than its factorization.

12199630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219970.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 12199630 is about 3492.7968735671. The cubic root of 12199630 is about 230.2054245360.

The spelling of 12199630 in words is "twelve million, one hundred ninety-nine thousand, six hundred thirty".

Divisors: 1 2 5 10 1219963 2439926 6099815 12199630