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451226980 = 22522561349
BaseRepresentation
bin11010111001010…
…010110101100100
31011110001201001101
4122321102311210
51411003230410
6112435205444
714116236361
oct3271226544
91143051041
10451226980
11211784566
12107146884
1372639319
1443cdb468
1529931d3a
hex1ae52d64

451226980 has 12 divisors (see below), whose sum is σ = 947576700. Its totient is φ = 180490784.

The previous prime is 451226969. The next prime is 451226987. The reversal of 451226980 is 89622154.

It can be written as a sum of positive squares in 2 ways, for example, as 266864896 + 184362084 = 16336^2 + 13578^2 .

It is not an unprimeable number, because it can be changed into a prime (451226987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11280655 + ... + 11280694.

It is an arithmetic number, because the mean of its divisors is an integer number (78964725).

Almost surely, 2451226980 is an apocalyptic number.

It is an amenable number.

451226980 is an abundant number, since it is smaller than the sum of its proper divisors (496349720).

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

451226980 is a wasteful number, since it uses less digits than its factorization.

451226980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22561358 (or 22561356 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 451226980 is about 21242.1039447603. The cubic root of 451226980 is about 767.0052791150.

The spelling of 451226980 in words is "four hundred fifty-one million, two hundred twenty-six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 22561349 45122698 90245396 112806745 225613490 451226980