Search a number
-
+
42800774 = 221400387
BaseRepresentation
bin1010001101000…
…1011010000110
32222112111121212
42203101122012
541424111044
64125211422
71026541412
oct243213206
988474555
1042800774
1122183945
1212400b72
138b37603
145981d42
153b56a9e
hex28d1686

42800774 has 4 divisors (see below), whose sum is σ = 64201164. Its totient is φ = 21400386.

The previous prime is 42800767. The next prime is 42800777. The reversal of 42800774 is 47700824.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42800774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42800777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10700192 + ... + 10700195.

It is an arithmetic number, because the mean of its divisors is an integer number (16050291).

Almost surely, 242800774 is an apocalyptic number.

42800774 is a deficient number, since it is larger than the sum of its proper divisors (21400390).

42800774 is a wasteful number, since it uses less digits than its factorization.

42800774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21400389.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 42800774 is about 6542.2300479271. The cubic root of 42800774 is about 349.7979078230.

The spelling of 42800774 in words is "forty-two million, eight hundred thousand, seven hundred seventy-four".

Divisors: 1 2 21400387 42800774