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11800401 = 310338189
BaseRepresentation
bin101101000000…
…111101010001
3211012112002220
4231000331101
511010103101
61100531253
7202205334
oct55007521
924175086
1011800401
11672a8a8
123b50b29
1325a21b2
1417d261b
151081636
hexb40f51

11800401 has 8 divisors (see below), whose sum is σ = 15887040. Its totient is φ = 7790352.

The previous prime is 11800391. The next prime is 11800409. The reversal of 11800401 is 10400811.

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

It is not a de Polignac number, because 11800401 - 29 = 11799889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11800409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18786 + ... + 19403.

It is an arithmetic number, because the mean of its divisors is an integer number (1985880).

Almost surely, 211800401 is an apocalyptic number.

It is an amenable number.

11800401 is a deficient number, since it is larger than the sum of its proper divisors (4086639).

11800401 is a wasteful number, since it uses less digits than its factorization.

11800401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38295.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 11800401 is about 3435.1711747743. The cubic root of 11800401 is about 227.6663903707. Note that the first 3 decimals are identical.

The spelling of 11800401 in words is "eleven million, eight hundred thousand, four hundred one".

Divisors: 1 3 103 309 38189 114567 3933467 11800401