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42144514 = 221072257
BaseRepresentation
bin1010000011000…
…1001100000010
32221022011101221
42200301030002
541242111024
64103145254
71021136206
oct240611402
987264357
1042144514
1121875885
121214522a
1389679a9
145850b06
153a773e4
hex2831302

42144514 has 4 divisors (see below), whose sum is σ = 63216774. Its totient is φ = 21072256.

The previous prime is 42144503. The next prime is 42144521. The reversal of 42144514 is 41544124.

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., 38850289 + 3294225 = 6233^2 + 1815^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10536127 + ... + 10536130.

Almost surely, 242144514 is an apocalyptic number.

42144514 is a deficient number, since it is larger than the sum of its proper divisors (21072260).

42144514 is a wasteful number, since it uses less digits than its factorization.

42144514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21072259.

The product of its digits is 2560, while the sum is 25.

The square root of 42144514 is about 6491.8806212068. The cubic root of 42144514 is about 348.0008862883. Note that the first 3 decimals are identical.

Adding to 42144514 its reverse (41544124), we get a palindrome (83688638).

The spelling of 42144514 in words is "forty-two million, one hundred forty-four thousand, five hundred fourteen".

Divisors: 1 2 21072257 42144514