Search a number
-
+
74680 = 2351867
BaseRepresentation
bin10010001110111000
310210102221
4102032320
54342210
61333424
7430504
oct221670
9123387
1074680
1151121
1237274
1327cb8
141d304
15171da
hex123b8

74680 has 16 divisors (see below), whose sum is σ = 168120. Its totient is φ = 29856.

The previous prime is 74653. The next prime is 74687. The reversal of 74680 is 8647.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894 + ... + 973.

274680 is an apocalyptic number.

It is an amenable number.

74680 is an abundant number, since it is smaller than the sum of its proper divisors (93440).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84060).

74680 is a wasteful number, since it uses less digits than its factorization.

74680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878 (or 1874 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 74680 is about 273.2764168383. The cubic root of 74680 is about 42.1115703271. Note that the first 3 decimals are identical.

The spelling of 74680 in words is "seventy-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1867 3734 7468 9335 14936 18670 37340 74680