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1864230284 = 22729511379
BaseRepresentation
bin110111100011101…
…1110010110001100
311210220212201012002
41233013132112030
512304220332114
6504552531432
764124460500
oct15707362614
94726781162
101864230284
11877344894
124403b0b78
132392bb657
14139836300
15ad9e47de
hex6f1de58c

1864230284 has 18 divisors (see below), whose sum is σ = 3795040620. Its totient is φ = 798955752.

The previous prime is 1864230283. The next prime is 1864230307. The reversal of 1864230284 is 4820324681.

It is not an unprimeable number, because it can be changed into a prime (1864230283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4755494 + ... + 4755885.

It is an arithmetic number, because the mean of its divisors is an integer number (210835590).

Almost surely, 21864230284 is an apocalyptic number.

1864230284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1864230284 is an abundant number, since it is smaller than the sum of its proper divisors (1930810336).

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

1864230284 is a wasteful number, since it uses less digits than its factorization.

1864230284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9511397 (or 9511388 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 1864230284 is about 43176.7331325565. The cubic root of 1864230284 is about 1230.7405776531.

The spelling of 1864230284 in words is "one billion, eight hundred sixty-four million, two hundred thirty thousand, two hundred eighty-four".

Divisors: 1 2 4 7 14 28 49 98 196 9511379 19022758 38045516 66579653 133159306 266318612 466057571 932115142 1864230284