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42623061 = 3131997593
BaseRepresentation
bin1010001010011…
…0000001010101
32222012110211220
42202212001111
541402414221
64121320553
71025201325
oct242460125
988173756
1042623061
1122072378
1212336159
138aa4760
145937285
153b1e0c6
hex28a6055

42623061 has 32 divisors (see below), whose sum is σ = 65197440. Its totient is φ = 24551424.

The previous prime is 42623059. The next prime is 42623081. The reversal of 42623061 is 16032624.

It is not a de Polignac number, because 42623061 - 21 = 42623059 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42623081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71581 + ... + 72173.

It is an arithmetic number, because the mean of its divisors is an integer number (2037420).

Almost surely, 242623061 is an apocalyptic number.

It is an amenable number.

42623061 is a deficient number, since it is larger than the sum of its proper divisors (22574379).

42623061 is a wasteful number, since it uses less digits than its factorization.

42623061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 42623061 is about 6528.6339306167. The cubic root of 42623061 is about 349.3131045100.

Adding to 42623061 its reverse (16032624), we get a palindrome (58655685).

The spelling of 42623061 in words is "forty-two million, six hundred twenty-three thousand, sixty-one".

Divisors: 1 3 13 19 39 57 97 247 291 593 741 1261 1779 1843 3783 5529 7709 11267 23127 23959 33801 57521 71877 146471 172563 439413 747773 1092899 2243319 3278697 14207687 42623061