Search a number
-
+
58440 = 2335487
BaseRepresentation
bin1110010001001000
32222011110
432101020
53332230
61130320
7332244
oct162110
988143
1058440
113a9a8
12299a0
13207a5
1417424
15124b0
hexe448

58440 has 32 divisors (see below), whose sum is σ = 175680. Its totient is φ = 15552.

The previous prime is 58439. The next prime is 58441. The reversal of 58440 is 4485.

It is an interprime number because it is at equal distance from previous prime (58439) and next prime (58441).

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124 + ... + 363.

It is an arithmetic number, because the mean of its divisors is an integer number (5490).

258440 is an apocalyptic number.

It is an amenable number.

58440 is an abundant number, since it is smaller than the sum of its proper divisors (117240).

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 (87840).

58440 is a wasteful number, since it uses less digits than its factorization.

58440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 58440 is about 241.7436658943. The cubic root of 58440 is about 38.8064041578.

The spelling of 58440 in words is "fifty-eight thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 487 974 1461 1948 2435 2922 3896 4870 5844 7305 9740 11688 14610 19480 29220 58440