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2128113832 = 231361335453
BaseRepresentation
bin111111011011000…
…0111000010101000
312111022102101100211
41332312013002220
513324244120312
6551100510504
7103510445335
oct17666070250
95438371324
102128113832
119a22a0469
124b484b434
1327bb82470
141628c798c
15c6c6c3a7
hex7ed870a8

2128113832 has 32 divisors (see below), whose sum is σ = 4367611080. Its totient is φ = 966101760.

The previous prime is 2128113809. The next prime is 2128113853. The reversal of 2128113832 is 2383118212.

It can be written as a sum of positive squares in 4 ways, for example, as 1525214916 + 602898916 = 39054^2 + 24554^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2128113794 and 2128113803.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161383 + ... + 174070.

Almost surely, 22128113832 is an apocalyptic number.

It is an amenable number.

2128113832 is an abundant number, since it is smaller than the sum of its proper divisors (2239497248).

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

2128113832 is a wasteful number, since it uses less digits than its factorization.

2128113832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335533 (or 335529 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 2128113832 is about 46131.4841729594. The cubic root of 2128113832 is about 1286.2684526884.

The spelling of 2128113832 in words is "two billion, one hundred twenty-eight million, one hundred thirteen thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 13 26 52 61 104 122 244 488 793 1586 3172 6344 335453 670906 1341812 2683624 4360889 8721778 17443556 20462633 34887112 40925266 81850532 163701064 266014229 532028458 1064056916 2128113832