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551160642 = 2391860107
BaseRepresentation
bin100000110110100…
…000101101000010
31102102002212021010
4200312200231002
52112044120032
6130405141350
716441534224
oct4066405502
91372085233
10551160642
1126313016a
121346ba856
138a258876
14532b2414
15335c1ccc
hex20da0b42

551160642 has 8 divisors (see below), whose sum is σ = 1102321296. Its totient is φ = 183720212.

The previous prime is 551160637. The next prime is 551160671. The reversal of 551160642 is 246061155.

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

551160642 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45930048 + ... + 45930059.

It is an arithmetic number, because the mean of its divisors is an integer number (137790162).

Almost surely, 2551160642 is an apocalyptic number.

551160642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

551160642 is a wasteful number, since it uses less digits than its factorization.

551160642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91860112.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 551160642 is about 23476.8107288873. The cubic root of 551160642 is about 819.8971921476.

The spelling of 551160642 in words is "five hundred fifty-one million, one hundred sixty thousand, six hundred forty-two".

Divisors: 1 2 3 6 91860107 183720214 275580321 551160642