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42424546 = 221212273
BaseRepresentation
bin1010000111010…
…1100011100010
32221211101112111
42201311203202
541330041141
64113145534
71023413503
oct241654342
987741474
1042424546
1121a4720a
121225b2aa
138a352a8
1458c4baa
153ad0381
hex28758e2

42424546 has 4 divisors (see below), whose sum is σ = 63636822. Its totient is φ = 21212272.

The previous prime is 42424519. The next prime is 42424561. The reversal of 42424546 is 64542424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39551521 + 2873025 = 6289^2 + 1695^2 .

It is a super-2 number, since 2×424245462 = 3599684206612232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10606135 + ... + 10606138.

Almost surely, 242424546 is an apocalyptic number.

42424546 is a deficient number, since it is larger than the sum of its proper divisors (21212276).

42424546 is a wasteful number, since it uses less digits than its factorization.

42424546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21212275.

The product of its digits is 30720, while the sum is 31.

The square root of 42424546 is about 6513.4127767247. The cubic root of 42424546 is about 348.7699570205.

The spelling of 42424546 in words is "forty-two million, four hundred twenty-four thousand, five hundred forty-six".

Divisors: 1 2 21212273 42424546