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454627990 = 2545462799
BaseRepresentation
bin11011000110010…
…001001010010110
31011200110111100201
4123012101022112
51412341043430
6113040131114
714160163015
oct3306211226
91150414321
10454627990
11213697813
12108306a9a
137325a35b
1444544a7c
1529da48ca
hex1b191296

454627990 has 8 divisors (see below), whose sum is σ = 818330400. Its totient is φ = 181851192.

The previous prime is 454627973. The next prime is 454628003. The reversal of 454627990 is 99726454.

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

It is a self number, because there is not a number n which added to its sum of digits gives 454627990.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22731390 + ... + 22731409.

It is an arithmetic number, because the mean of its divisors is an integer number (102291300).

Almost surely, 2454627990 is an apocalyptic number.

454627990 is a deficient number, since it is larger than the sum of its proper divisors (363702410).

454627990 is a wasteful number, since it uses less digits than its factorization.

454627990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45462806.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 454627990 is about 21322.0071756859. The cubic root of 454627990 is about 768.9274943012.

The spelling of 454627990 in words is "four hundred fifty-four million, six hundred twenty-seven thousand, nine hundred ninety".

Divisors: 1 2 5 10 45462799 90925598 227313995 454627990