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454623040 = 2651420697
BaseRepresentation
bin11011000110001…
…111111101000000
31011200110020120101
4123012033331000
51412340414130
6113040052144
714160142414
oct3306177500
91150406511
10454623040
11213694023
12108304054
1373258021
1444542d44
1529da31ca
hex1b18ff40

454623040 has 28 divisors (see below), whose sum is σ = 1082571876. Its totient is φ = 181849088.

The previous prime is 454623019. The next prime is 454623097. The reversal of 454623040 is 40326454.

It can be written as a sum of positive squares in 2 ways, for example, as 96353856 + 358269184 = 9816^2 + 18928^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710029 + ... + 710668.

Almost surely, 2454623040 is an apocalyptic number.

454623040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

454623040 is an abundant number, since it is smaller than the sum of its proper divisors (627948836).

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

454623040 is a wasteful number, since it uses less digits than its factorization.

454623040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420714 (or 1420704 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 454623040 is about 21321.8910981179. The cubic root of 454623040 is about 768.9247035910.

Adding to 454623040 its reverse (40326454), we get a palindrome (494949494).

The spelling of 454623040 in words is "four hundred fifty-four million, six hundred twenty-three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 1420697 2841394 5682788 7103485 11365576 14206970 22731152 28413940 45462304 56827880 90924608 113655760 227311520 454623040