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7135140 = 22351091091
BaseRepresentation
bin11011001101111110100100
3111102111120110
4123031332210
53311311030
6412533020
7114435105
oct33157644
914374513
107135140
114033811
122481170
13162a89c
14d3a3ac
1595e1b0
hex6cdfa4

7135140 has 48 divisors (see below), whose sum is σ = 20180160. Its totient is φ = 1883520.

The previous prime is 7135133. The next prime is 7135153. The reversal of 7135140 is 415317.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5995 + ... + 7085.

It is an arithmetic number, because the mean of its divisors is an integer number (420420).

Almost surely, 27135140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7135140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10090080).

7135140 is an abundant number, since it is smaller than the sum of its proper divisors (13045020).

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

7135140 is a wasteful number, since it uses less digits than its factorization.

7135140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 7135140 is about 2671.1682837291. The cubic root of 7135140 is about 192.5162970404.

The spelling of 7135140 in words is "seven million, one hundred thirty-five thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 109 218 327 436 545 654 1090 1091 1308 1635 2180 2182 3270 3273 4364 5455 6540 6546 10910 13092 16365 21820 32730 65460 118919 237838 356757 475676 594595 713514 1189190 1427028 1783785 2378380 3567570 7135140