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8101128 = 233748221
BaseRepresentation
bin11110111001110100001000
3120020120122210
4132321310020
54033214003
6445345120
7125600310
oct36716410
916216583
108101128
114633552
1228681a0
1318a8489
14110c440
15aa0503
hex7b9d08

8101128 has 32 divisors (see below), whose sum is σ = 23146560. Its totient is φ = 2314560.

The previous prime is 8101127. The next prime is 8101133. The reversal of 8101128 is 8211018.

8101128 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8101127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23943 + ... + 24278.

It is an arithmetic number, because the mean of its divisors is an integer number (723330).

Almost surely, 28101128 is an apocalyptic number.

It is an amenable number.

8101128 is an abundant number, since it is smaller than the sum of its proper divisors (15045432).

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

8101128 is a wasteful number, since it uses less digits than its factorization.

8101128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48237 (or 48233 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 8101128 is about 2846.2480566528. The cubic root of 8101128 is about 200.8392070656.

The spelling of 8101128 in words is "eight million, one hundred one thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 48221 96442 144663 192884 289326 337547 385768 578652 675094 1012641 1157304 1350188 2025282 2700376 4050564 8101128