Search a number
-
+
7470 = 232583
BaseRepresentation
bin1110100101110
3101020200
41310232
5214340
654330
730531
oct16456
911220
107470
115681
1243a6
133528
142a18
152330
hex1d2e

7470 has 24 divisors (see below), whose sum is σ = 19656. Its totient is φ = 1968.

The previous prime is 7459. The next prime is 7477. The reversal of 7470 is 747.

It can be divided in two parts, 74 and 70, that added together give a square (144 = 122).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7477) by changing a digit.

7470 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49 + ... + 131.

It is an arithmetic number, because the mean of its divisors is an integer number (819).

It is a practical number, because each smaller number is the sum of distinct divisors of 7470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9828).

7470 is an abundant number, since it is smaller than the sum of its proper divisors (12186).

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

7470 is a wasteful number, since it uses less digits than its factorization.

7470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

The square root of 7470 is about 86.4291617453. The cubic root of 7470 is about 19.5482042119.

The spelling of 7470 in words is "seven thousand, four hundred seventy", and thus it is an iban number.

Divisors: 1 2 3 5 6 9 10 15 18 30 45 83 90 166 249 415 498 747 830 1245 1494 2490 3735 7470