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7940133 = 33476257
BaseRepresentation
bin11110010010100000100101
3112221101211000
4132102200211
54013041013
6442103513
7124330035
oct36224045
915841730
107940133
1145335a3
1227aab99
131850106
1410a98c5
15a6c973
hex792825

7940133 has 16 divisors (see below), whose sum is σ = 12015360. Its totient is φ = 5179968.

The previous prime is 7940087. The next prime is 7940147. The reversal of 7940133 is 3310497.

It is not a de Polignac number, because 7940133 - 26 = 7940069 is a prime.

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

7940133 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7940097 and 7940106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1860 + ... + 4397.

It is an arithmetic number, because the mean of its divisors is an integer number (750960).

Almost surely, 27940133 is an apocalyptic number.

It is an amenable number.

7940133 is a deficient number, since it is larger than the sum of its proper divisors (4075227).

7940133 is a wasteful number, since it uses less digits than its factorization.

7940133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6313 (or 6307 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 7940133 is about 2817.8241605892. The cubic root of 7940133 is about 199.4998586691.

The spelling of 7940133 in words is "seven million, nine hundred forty thousand, one hundred thirty-three".

Divisors: 1 3 9 27 47 141 423 1269 6257 18771 56313 168939 294079 882237 2646711 7940133