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2120128 = 26157211
BaseRepresentation
bin1000000101100111000000
310222201021021
420011213000
51020321003
6113235224
724010063
oct10054700
93881237
102120128
11121897a
12862b14
1359301a
143d28da
152bd2bd
hex2059c0

2120128 has 28 divisors (see below), whose sum is σ = 4253992. Its totient is φ = 1048320.

The previous prime is 2120119. The next prime is 2120143. The reversal of 2120128 is 8210212.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9943 + ... + 10153.

22120128 is an apocalyptic number.

It is an amenable number.

2120128 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

2120128 is a wasteful number, since it uses less digits than its factorization.

2120128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2120128 is about 1456.0659325731. The cubic root of 2120128 is about 128.4657511414.

The spelling of 2120128 in words is "two million, one hundred twenty thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 16 32 64 157 211 314 422 628 844 1256 1688 2512 3376 5024 6752 10048 13504 33127 66254 132508 265016 530032 1060064 2120128