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11888001 = 321320889
BaseRepresentation
bin101101010110…
…010110000001
3211100222021100
4231112112001
511020404001
61102445013
7203021616
oct55262601
924328240
1011888001
11678a6a4
123b93769
132603028
14181650d
15109c586
hexb56581

11888001 has 6 divisors (see below), whose sum is σ = 17171570. Its totient is φ = 7925328.

The previous prime is 11887979. The next prime is 11888017. The reversal of 11888001 is 10088811.

11888001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10890000 + 998001 = 3300^2 + 999^2 .

It is not a de Polignac number, because 11888001 - 29 = 11887489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11888101) 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 5 ways as a sum of consecutive naturals, for example, 660436 + ... + 660453.

Almost surely, 211888001 is an apocalyptic number.

It is an amenable number.

11888001 is a deficient number, since it is larger than the sum of its proper divisors (5283569).

11888001 is a wasteful number, since it uses less digits than its factorization.

11888001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320895 (or 1320892 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 27.

The square root of 11888001 is about 3447.8980553375. The cubic root of 11888001 is about 228.2283607676.

The spelling of 11888001 in words is "eleven million, eight hundred eighty-eight thousand, one".

Divisors: 1 3 9 1320889 3962667 11888001