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2148097884 = 223179008157
BaseRepresentation
bin1000000000001001…
…0101111101011100
312112201000200022220
42000002111331130
513344403113014
6553053105340
7104142350022
oct20002257534
95481020286
102148097884
11a025aa809
124bb488250
1328305b54a
1416540a712
15c88b86a9
hex80095f5c

2148097884 has 12 divisors (see below), whose sum is σ = 5012228424. Its totient is φ = 716032624.

The previous prime is 2148097873. The next prime is 2148097907. The reversal of 2148097884 is 4887908412.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×21480978842 = 9228649038490554912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 89504067 + ... + 89504090.

It is an arithmetic number, because the mean of its divisors is an integer number (417685702).

Almost surely, 22148097884 is an apocalyptic number.

It is an amenable number.

2148097884 is an abundant number, since it is smaller than the sum of its proper divisors (2864130540).

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

2148097884 is a wasteful number, since it uses less digits than its factorization.

2148097884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179008164 (or 179008162 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 51.

The square root of 2148097884 is about 46347.5768945907. The cubic root of 2148097884 is about 1290.2821496891.

The spelling of 2148097884 in words is "two billion, one hundred forty-eight million, ninety-seven thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 179008157 358016314 537024471 716032628 1074048942 2148097884