Search a number
-
+
60231620 = 2253011581
BaseRepresentation
bin1110010111000…
…0111111000100
311012100002020202
43211300333010
5110404402440
65550550032
71330650251
oct345607704
9135302222
1060231620
1130aa99a9
1218208318
13c62b517
147ddc428
15544b615
hex3970fc4

60231620 has 12 divisors (see below), whose sum is σ = 126486444. Its totient is φ = 24092640.

The previous prime is 60231617. The next prime is 60231679. The reversal of 60231620 is 2613206.

It can be written as a sum of positive squares in 2 ways, for example, as 35808256 + 24423364 = 5984^2 + 4942^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 3011581 = 60231620 / (6 + 0 + 2 + 3 + 1 + 6 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 60231592 and 60231601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505771 + ... + 1505810.

It is an arithmetic number, because the mean of its divisors is an integer number (10540537).

Almost surely, 260231620 is an apocalyptic number.

It is an amenable number.

60231620 is an abundant number, since it is smaller than the sum of its proper divisors (66254824).

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

60231620 is a wasteful number, since it uses less digits than its factorization.

60231620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011590 (or 3011588 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 60231620 is about 7760.9032979415. The cubic root of 60231620 is about 391.9898737492.

Adding to 60231620 its reverse (2613206), we get a palindrome (62844826).

The spelling of 60231620 in words is "sixty million, two hundred thirty-one thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 3011581 6023162 12046324 15057905 30115810 60231620