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578664042 = 231131282827
BaseRepresentation
bin100010011111011…
…011011001101010
31111022212011211120
4202133123121222
52141114222132
6133230440110
720224364115
oct4237333152
91438764746
10578664042
11277705950
12141963036
1392b68378
1456bd157c
1535c0602c
hex227db66a

578664042 has 32 divisors (see below), whose sum is σ = 1303271424. Its totient is φ = 169695600.

The previous prime is 578663989. The next prime is 578664049. The reversal of 578664042 is 240466875.

It is a junction number, because it is equal to n+sod(n) for n = 578663985 and 578664003.

It is not an unprimeable number, because it can be changed into a prime (578664049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139368 + ... + 143459.

It is an arithmetic number, because the mean of its divisors is an integer number (40727232).

Almost surely, 2578664042 is an apocalyptic number.

578664042 is an abundant number, since it is smaller than the sum of its proper divisors (724607382).

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

578664042 is a wasteful number, since it uses less digits than its factorization.

578664042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282874.

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 578664042 is about 24055.4368490784. The cubic root of 578664042 is about 833.3142952806.

The spelling of 578664042 in words is "five hundred seventy-eight million, six hundred sixty-four thousand, forty-two".

Divisors: 1 2 3 6 11 22 31 33 62 66 93 186 341 682 1023 2046 282827 565654 848481 1696962 3111097 6222194 8767637 9333291 17535274 18666582 26302911 52605822 96444007 192888014 289332021 578664042