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10893681 = 321210409
BaseRepresentation
bin101001100011…
…100101110001
3202111110022200
4221203211301
510242044211
61025253413
7161411001
oct51434561
922443280
1010893681
116170647
123794269
132345586
141638001
15e52b56
hexa63971

10893681 has 6 divisors (see below), whose sum is σ = 15735330. Its totient is φ = 7262448.

The previous prime is 10893677. The next prime is 10893683. The reversal of 10893681 is 18639801.

10893681 is digitally balanced in base 2 and base 3, because in such bases 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., 8071281 + 2822400 = 2841^2 + 1680^2 .

It is not a de Polignac number, because 10893681 - 22 = 10893677 is a prime.

It is a super-2 number, since 2×108936812 = 237344571459522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10893683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 605196 + ... + 605213.

It is an arithmetic number, because the mean of its divisors is an integer number (2622555).

Almost surely, 210893681 is an apocalyptic number.

It is an amenable number.

10893681 is a deficient number, since it is larger than the sum of its proper divisors (4841649).

10893681 is a wasteful number, since it uses less digits than its factorization.

10893681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210415 (or 1210412 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 10893681 is about 3300.5576801504. The cubic root of 10893681 is about 221.6791688981.

The spelling of 10893681 in words is "ten million, eight hundred ninety-three thousand, six hundred eighty-one".

Divisors: 1 3 9 1210409 3631227 10893681