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4454216420 = 2251789124489
BaseRepresentation
bin1000010010111110…
…11111001011100100
3102111102101122020112
410021133133023210
533110234411140
62013553152152
7215244133463
oct41137371344
912442348215
104454216420
11198631a7a5
12a4385b658
1355ca66624
143037cc9da
151b1097c65
hex1097df2e4

4454216420 has 24 divisors (see below), whose sum is σ = 9359158200. Its totient is φ = 1780676352.

The previous prime is 4454216419. The next prime is 4454216443. The reversal of 4454216420 is 246124544.

It can be written as a sum of positive squares in 4 ways, for example, as 547466404 + 3906750016 = 23398^2 + 62504^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26465 + ... + 98024.

It is an arithmetic number, because the mean of its divisors is an integer number (389964925).

Almost surely, 24454216420 is an apocalyptic number.

It is an amenable number.

4454216420 is an abundant number, since it is smaller than the sum of its proper divisors (4904941780).

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

4454216420 is a wasteful number, since it uses less digits than its factorization.

4454216420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126287 (or 126285 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 4454216420 is about 66739.9162420811. The cubic root of 4454216420 is about 1645.3454890358.

The spelling of 4454216420 in words is "four billion, four hundred fifty-four million, two hundred sixteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1789 3578 7156 8945 17890 35780 124489 248978 497956 622445 1244890 2489780 222710821 445421642 890843284 1113554105 2227108210 4454216420