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11819490 = 235487809
BaseRepresentation
bin101101000101…
…100111100010
3211020111021220
4231011213202
511011210430
61101155510
7202315104
oct55054742
924214256
1011819490
116743181
123b5bb96
1325aaaa7
1417d9574
151087110
hexb459e2

11819490 has 32 divisors (see below), whose sum is σ = 28460160. Its totient is φ = 3141504.

The previous prime is 11819459. The next prime is 11819491. The reversal of 11819490 is 9491811.

11819490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11819491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14206 + ... + 15014.

It is an arithmetic number, because the mean of its divisors is an integer number (889380).

Almost surely, 211819490 is an apocalyptic number.

11819490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11819490 is an abundant number, since it is smaller than the sum of its proper divisors (16640670).

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

11819490 is a wasteful number, since it uses less digits than its factorization.

11819490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 11819490 is about 3437.9485161939. The cubic root of 11819490 is about 227.7890862696.

The spelling of 11819490 in words is "eleven million, eight hundred nineteen thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 487 809 974 1461 1618 2427 2435 2922 4045 4854 4870 7305 8090 12135 14610 24270 393983 787966 1181949 1969915 2363898 3939830 5909745 11819490