Search a number
-
+
62144021 = 127643761
BaseRepresentation
bin1110110100001…
…1111000010101
311022221020120102
43231003320111
5111402102041
610055543445
71353133622
oct355037025
9138836512
1062144021
11320957a5
121898ab85
13cb4ab14
148379349
1556c809b
hex3b43e15

62144021 has 8 divisors (see below), whose sum is σ = 62813184. Its totient is φ = 61477920.

The previous prime is 62143973. The next prime is 62144059. The reversal of 62144021 is 12044126.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-62144021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 62143984 and 62144002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62144221) 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, 81281 + ... + 82041.

It is an arithmetic number, because the mean of its divisors is an integer number (7851648).

Almost surely, 262144021 is an apocalyptic number.

It is an amenable number.

62144021 is a deficient number, since it is larger than the sum of its proper divisors (669163).

62144021 is a wasteful number, since it uses less digits than its factorization.

62144021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 62144021 is about 7883.1479118433. The cubic root of 62144021 is about 396.0953860790.

Adding to 62144021 its reverse (12044126), we get a palindrome (74188147).

The spelling of 62144021 in words is "sixty-two million, one hundred forty-four thousand, twenty-one".

Divisors: 1 127 643 761 81661 96647 489323 62144021