Search a number
-
+
7042750 = 2531113197
BaseRepresentation
bin11010110111011010111110
3111020210211121
4122313122332
53300332000
6410541154
7113601541
oct32673276
914223747
107042750
113a80360
1224377ba
1315c7810
14d14858
15941b1a
hex6b76be

7042750 has 64 divisors (see below), whose sum is σ = 15567552. Its totient is φ = 2352000.

The previous prime is 7042747. The next prime is 7042753. The reversal of 7042750 is 572407.

It is an interprime number because it is at equal distance from previous prime (7042747) and next prime (7042753).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7042753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35652 + ... + 35848.

It is an arithmetic number, because the mean of its divisors is an integer number (243243).

Almost surely, 27042750 is an apocalyptic number.

7042750 is the 2167-th pentagonal number.

7042750 is an abundant number, since it is smaller than the sum of its proper divisors (8524802).

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

7042750 is a wasteful number, since it uses less digits than its factorization.

7042750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 7042750 is about 2653.8180043100. The cubic root of 7042750 is about 191.6817463456.

The spelling of 7042750 in words is "seven million, forty-two thousand, seven hundred fifty".

Divisors: 1 2 5 10 11 13 22 25 26 50 55 65 110 125 130 143 197 250 275 286 325 394 550 650 715 985 1375 1430 1625 1970 2167 2561 2750 3250 3575 4334 4925 5122 7150 9850 10835 12805 17875 21670 24625 25610 28171 35750 49250 54175 56342 64025 108350 128050 140855 270875 281710 320125 541750 640250 704275 1408550 3521375 7042750