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10881243 = 331921211
BaseRepresentation
bin101001100000…
…100011011011
3202110211021000
4221200203123
510241144433
61025120043
7161326512
oct51404333
922424230
1010881243
11616226a
123789023
13233ca09
141633679
15e4e113
hexa608db

10881243 has 16 divisors (see below), whose sum is σ = 16969600. Its totient is φ = 6872040.

The previous prime is 10881191. The next prime is 10881251. The reversal of 10881243 is 34218801.

It is not a de Polignac number, because 10881243 - 26 = 10881179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10881263) 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 15 ways as a sum of consecutive naturals, for example, 10093 + ... + 11118.

It is an arithmetic number, because the mean of its divisors is an integer number (1060600).

Almost surely, 210881243 is an apocalyptic number.

10881243 is a deficient number, since it is larger than the sum of its proper divisors (6088357).

10881243 is a wasteful number, since it uses less digits than its factorization.

10881243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21239 (or 21233 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 10881243 is about 3298.6729149766. The cubic root of 10881243 is about 221.5947684234.

The spelling of 10881243 in words is "ten million, eight hundred eighty-one thousand, two hundred forty-three".

Divisors: 1 3 9 19 27 57 171 513 21211 63633 190899 403009 572697 1209027 3627081 10881243