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42687068 = 22174161251
BaseRepresentation
bin1010001011010…
…1101001011100
32222022201122112
42202311221130
541411441233
64122533152
71025556044
oct242655134
988281575
1042687068
1122106476
12123671b8
138ac7928
145952724
153b33048
hex28b5a5c

42687068 has 48 divisors (see below), whose sum is σ = 82682208. Its totient is φ = 19200000.

The previous prime is 42687067. The next prime is 42687077. The reversal of 42687068 is 86078624.

42687068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×426870683 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42687067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169943 + ... + 170193.

It is an arithmetic number, because the mean of its divisors is an integer number (1722546).

Almost surely, 242687068 is an apocalyptic number.

It is an amenable number.

42687068 is a deficient number, since it is larger than the sum of its proper divisors (39995140).

42687068 is a wasteful number, since it uses less digits than its factorization.

42687068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 42687068 is about 6533.5341125611. The cubic root of 42687068 is about 349.4878714145.

The spelling of 42687068 in words is "forty-two million, six hundred eighty-seven thousand, sixty-eight".

Divisors: 1 2 4 17 34 41 61 68 82 122 164 244 251 502 697 1004 1037 1394 2074 2501 2788 4148 4267 5002 8534 10004 10291 15311 17068 20582 30622 41164 42517 61244 85034 170068 174947 260287 349894 520574 627751 699788 1041148 1255502 2511004 10671767 21343534 42687068