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453420930 = 23561247771
BaseRepresentation
bin11011000001101…
…010011110000010
31011121012011120210
4123001222132002
51412033432210
6112554214550
714144004624
oct3301523602
91147164523
10453420930
11212a42946
12107a24456
1372c26b11
144430cc14
1529c16e20
hex1b06a782

453420930 has 32 divisors (see below), whose sum is σ = 1106054208. Its totient is φ = 118929600.

The previous prime is 453420907. The next prime is 453420937. The reversal of 453420930 is 39024354.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (453420937) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 122056 + ... + 125715.

It is an arithmetic number, because the mean of its divisors is an integer number (34564194).

Almost surely, 2453420930 is an apocalyptic number.

453420930 is an abundant number, since it is smaller than the sum of its proper divisors (652633278).

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

453420930 is a wasteful number, since it uses less digits than its factorization.

453420930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247842.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 453420930 is about 21293.6828660521. The cubic root of 453420930 is about 768.2463775227.

The spelling of 453420930 in words is "four hundred fifty-three million, four hundred twenty thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 61 122 183 305 366 610 915 1830 247771 495542 743313 1238855 1486626 2477710 3716565 7433130 15114031 30228062 45342093 75570155 90684186 151140310 226710465 453420930