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42330501 = 324703389
BaseRepresentation
bin1010000101111…
…0100110000101
32221122121112100
42201132212011
541314034001
64111142313
71022542353
oct241364605
987577470
1042330501
1121992594
1212214999
138a01545
14589c7d3
153ab2586
hex285e985

42330501 has 6 divisors (see below), whose sum is σ = 61144070. Its totient is φ = 28220328.

The previous prime is 42330487. The next prime is 42330551. The reversal of 42330501 is 10503324.

It can be written as a sum of positive squares in only one way, i.e., 21399876 + 20930625 = 4626^2 + 4575^2 .

It is a de Polignac number, because none of the positive numbers 2k-42330501 is a prime.

It is a super-2 number, since 2×423305012 = 3583742629822002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42330551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2351686 + ... + 2351703.

Almost surely, 242330501 is an apocalyptic number.

It is an amenable number.

42330501 is a deficient number, since it is larger than the sum of its proper divisors (18813569).

42330501 is a wasteful number, since it uses less digits than its factorization.

42330501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703395 (or 4703392 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 42330501 is about 6506.1894377585. The cubic root of 42330501 is about 348.5120533601.

Adding to 42330501 its reverse (10503324), we get a palindrome (52833825).

The spelling of 42330501 in words is "forty-two million, three hundred thirty thousand, five hundred one".

Divisors: 1 3 9 4703389 14110167 42330501