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9139356 = 2232253871
BaseRepresentation
bin100010110111…
…010010011100
3122012022211200
4202313102130
54314424411
6523515500
7140453232
oct42672234
918168750
109139356
115182596
123088b90
131b7cc05
1412dc952
15c07e56
hex8b749c

9139356 has 18 divisors (see below), whose sum is σ = 23102352. Its totient is φ = 3046440.

The previous prime is 9139343. The next prime is 9139363. The reversal of 9139356 is 6539319.

9139356 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 253871 = 9139356 / (9 + 1 + 3 + 9 + 3 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 9139356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126900 + ... + 126971.

It is an arithmetic number, because the mean of its divisors is an integer number (1283464).

Almost surely, 29139356 is an apocalyptic number.

It is an amenable number.

9139356 is an abundant number, since it is smaller than the sum of its proper divisors (13962996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9139356 is a wasteful number, since it uses less digits than its factorization.

9139356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253881 (or 253876 counting only the distinct ones).

The product of its digits is 21870, while the sum is 36.

The square root of 9139356 is about 3023.1367815565. The cubic root of 9139356 is about 209.0764888720.

The spelling of 9139356 in words is "nine million, one hundred thirty-nine thousand, three hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 253871 507742 761613 1015484 1523226 2284839 3046452 4569678 9139356