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42454682 = 2197277389
BaseRepresentation
bin1010000111110…
…0111010011010
32221212220212122
42201330322122
541332022212
64113541242
71023600404
oct241747232
987786778
1042454682
1121a67916
1212274822
138a45c1a
1458d1b74
153ad9272
hex287ce9a

42454682 has 16 divisors (see below), whose sum is σ = 64401480. Its totient is φ = 20989248.

The previous prime is 42454681. The next prime is 42454733. The reversal of 42454682 is 28645424.

It can be written as a sum of positive squares in 4 ways, for example, as 36348841 + 6105841 = 6029^2 + 2471^2 .

It is a super-2 number, since 2×424546822 = 3604800047442248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42454681) 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, 108944 + ... + 109332.

Almost surely, 242454682 is an apocalyptic number.

42454682 is a deficient number, since it is larger than the sum of its proper divisors (21946798).

42454682 is a wasteful number, since it uses less digits than its factorization.

42454682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its digits is 61440, while the sum is 35.

The square root of 42454682 is about 6515.7257462235. The cubic root of 42454682 is about 348.8525196303.

The spelling of 42454682 in words is "forty-two million, four hundred fifty-four thousand, six hundred eighty-two".

Divisors: 1 2 197 277 389 394 554 778 54569 76633 107753 109138 153266 215506 21227341 42454682