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42794455 = 511778081
BaseRepresentation
bin1010001100111…
…1110111010111
32222112011221211
42203033313113
541423410310
64125122251
71026514114
oct243176727
988464854
1042794455
112217a120
12123b9387
138b34782
14597d90b
153b54c8a
hex28cfdd7

42794455 has 8 divisors (see below), whose sum is σ = 56021904. Its totient is φ = 31123200.

The previous prime is 42794449. The next prime is 42794461. The reversal of 42794455 is 55449724.

It is an interprime number because it is at equal distance from previous prime (42794449) and next prime (42794461).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42794455 - 29 = 42793943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388986 + ... + 389095.

It is an arithmetic number, because the mean of its divisors is an integer number (7002738).

Almost surely, 242794455 is an apocalyptic number.

42794455 is a deficient number, since it is larger than the sum of its proper divisors (13227449).

42794455 is a wasteful number, since it uses less digits than its factorization.

42794455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778097.

The product of its digits is 201600, while the sum is 40.

The square root of 42794455 is about 6541.7470908007. The cubic root of 42794455 is about 349.7806925442.

It can be divided in two parts, 42 and 794455, that added together give a palindrome (794497).

The spelling of 42794455 in words is "forty-two million, seven hundred ninety-four thousand, four hundred fifty-five".

Divisors: 1 5 11 55 778081 3890405 8558891 42794455