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2128606752 = 25322172987
BaseRepresentation
bin111111011011111…
…1111011000100000
312111100100102112010
41332313333120200
513324410404002
6551115232520
7103514600406
oct17667773040
95440312463
102128606752
119a25a7838
124b4a48740
1327bcc592c
141629b5476
15c6d1846c
hex7edff620

2128606752 has 24 divisors (see below), whose sum is σ = 5587592976. Its totient is φ = 709535552.

The previous prime is 2128606751. The next prime is 2128606759. The reversal of 2128606752 is 2576068212.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2128606752.

It is not an unprimeable number, because it can be changed into a prime (2128606751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11086398 + ... + 11086589.

It is an arithmetic number, because the mean of its divisors is an integer number (232816374).

Almost surely, 22128606752 is an apocalyptic number.

It is an amenable number.

2128606752 is an abundant number, since it is smaller than the sum of its proper divisors (3458986224).

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

2128606752 is a wasteful number, since it uses less digits than its factorization.

2128606752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22173000 (or 22172992 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 2128606752 is about 46136.8264188165. The cubic root of 2128606752 is about 1286.3677547857.

The spelling of 2128606752 in words is "two billion, one hundred twenty-eight million, six hundred six thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 22172987 44345974 66518961 88691948 133037922 177383896 266075844 354767792 532151688 709535584 1064303376 2128606752