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454144042 = 211191086469
BaseRepresentation
bin11011000100011…
…011000000101010
31011122112220111201
4123010123000222
51412230102132
6113021514414
714153106052
oct3304330052
91148486451
10454144042
11213397160
12108112a0a
137311acb1
144445a562
1529d0b2e7
hex1b11b02a

454144042 has 16 divisors (see below), whose sum is σ = 782258400. Its totient is φ = 195564240.

The previous prime is 454144037. The next prime is 454144043. The reversal of 454144042 is 240441454.

It is a self number, because there is not a number n which added to its sum of digits gives 454144042.

It is not an unprimeable number, because it can be changed into a prime (454144043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542817 + ... + 543652.

It is an arithmetic number, because the mean of its divisors is an integer number (48891150).

Almost surely, 2454144042 is an apocalyptic number.

454144042 is a deficient number, since it is larger than the sum of its proper divisors (328114358).

454144042 is a wasteful number, since it uses less digits than its factorization.

454144042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086501.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 454144042 is about 21310.6555976113. The cubic root of 454144042 is about 768.6545582969.

Adding to 454144042 its reverse (240441454), we get a palindrome (694585496).

The spelling of 454144042 in words is "four hundred fifty-four million, one hundred forty-four thousand, forty-two".

Divisors: 1 2 11 19 22 38 209 418 1086469 2172938 11951159 20642911 23902318 41285822 227072021 454144042