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11952890 = 256191931
BaseRepresentation
bin101101100110…
…001011111010
3211111021021122
4231212023322
511024443030
61104105242
7203412035
oct55461372
924437248
1011952890
116824424
124005222
132626721
14183201c
1510b18e5
hexb662fa

11952890 has 16 divisors (see below), whose sum is σ = 21561120. Its totient is φ = 4770960.

The previous prime is 11952883. The next prime is 11952907. The reversal of 11952890 is 9825911.

It is a self number, because there is not a number n which added to its sum of digits gives 11952890.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5225 + ... + 7155.

It is an arithmetic number, because the mean of its divisors is an integer number (1347570).

Almost surely, 211952890 is an apocalyptic number.

11952890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11952890 is a deficient number, since it is larger than the sum of its proper divisors (9608230).

11952890 is a wasteful number, since it uses less digits than its factorization.

11952890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 11952890 is about 3457.2951855461. The cubic root of 11952890 is about 228.6428584418.

The spelling of 11952890 in words is "eleven million, nine hundred fifty-two thousand, eight hundred ninety".

Divisors: 1 2 5 10 619 1238 1931 3095 3862 6190 9655 19310 1195289 2390578 5976445 11952890