Search a number
-
+
42643068 = 223131914387
BaseRepresentation
bin1010001010101…
…0111001111100
32222020111021220
42202222321330
541404034233
64121553340
71025313546
oct242527174
988214256
1042643068
1122086406
1212345850
138ab08b0
145940696
153b24eb3
hex28aae7c

42643068 has 48 divisors (see below), whose sum is σ = 112801920. Its totient is φ = 12429504.

The previous prime is 42643067. The next prime is 42643099. The reversal of 42643068 is 86034624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42643067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4230 + ... + 10157.

It is an arithmetic number, because the mean of its divisors is an integer number (2350040).

Almost surely, 242643068 is an apocalyptic number.

It is an amenable number.

42643068 is an abundant number, since it is smaller than the sum of its proper divisors (70158852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42643068 is a wasteful number, since it uses less digits than its factorization.

42643068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14426 (or 14424 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 42643068 is about 6530.1660009528. The cubic root of 42643068 is about 349.3677510942.

The spelling of 42643068 in words is "forty-two million, six hundred forty-three thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 13 19 26 38 39 52 57 76 78 114 156 228 247 494 741 988 1482 2964 14387 28774 43161 57548 86322 172644 187031 273353 374062 546706 561093 748124 820059 1093412 1122186 1640118 2244372 3280236 3553589 7107178 10660767 14214356 21321534 42643068