Search a number
-
+
8940807 = 33331141
BaseRepresentation
bin100010000110…
…110100000111
3121211020111000
4202012310013
54242101212
6515344343
7135665331
oct42066407
917736430
108940807
1150573a7
122bb20b3
131b10725
14128a451
15bb91dc
hex886d07

8940807 has 8 divisors (see below), whose sum is σ = 13245680. Its totient is φ = 5960520.

The previous prime is 8940779. The next prime is 8940809. The reversal of 8940807 is 7080498.

It is a de Polignac number, because none of the positive numbers 2k-8940807 is a prime.

It is a super-2 number, since 2×89408072 = 159876059622498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8940809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165544 + ... + 165597.

It is an arithmetic number, because the mean of its divisors is an integer number (1655710).

Almost surely, 28940807 is an apocalyptic number.

8940807 is a deficient number, since it is larger than the sum of its proper divisors (4304873).

8940807 is a wasteful number, since it uses less digits than its factorization.

8940807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331150 (or 331144 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8940807 is about 2990.1182250874. The cubic root of 8940807 is about 207.5513551700.

The spelling of 8940807 in words is "eight million, nine hundred forty thousand, eight hundred seven".

Divisors: 1 3 9 27 331141 993423 2980269 8940807