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551424907 = 11228121977
BaseRepresentation
bin100000110111100…
…001001110001011
31102102121021202201
4200313201032023
52112131044112
6130414541031
716444014535
oct4067411613
91372537681
10551424907
112632a0770
12134807777
138a31bc37
1453340855
1533625257
hex20de138b

551424907 has 8 divisors (see below), whose sum is σ = 601845552. Its totient is φ = 501052800.

The previous prime is 551424899. The next prime is 551424943. The reversal of 551424907 is 709424155.

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

It is a cyclic number.

It is not a de Polignac number, because 551424907 - 23 = 551424899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551424007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14103 + ... + 36079.

It is an arithmetic number, because the mean of its divisors is an integer number (75230694).

Almost surely, 2551424907 is an apocalyptic number.

551424907 is a deficient number, since it is larger than the sum of its proper divisors (50420645).

551424907 is a wasteful number, since it uses less digits than its factorization.

551424907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24269.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 551424907 is about 23482.4382677779. The cubic root of 551424907 is about 820.0282099159.

The spelling of 551424907 in words is "five hundred fifty-one million, four hundred twenty-four thousand, nine hundred seven".

Divisors: 1 11 2281 21977 25091 241747 50129537 551424907