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2128070 = 257243101
BaseRepresentation
bin1000000111100011000110
311000010011102
420013203012
51021044240
6113340102
724042200
oct10074306
94003142
102128070
11122393a
12867632
13596819
143d5770
152c0815
hex2078c6

2128070 has 48 divisors (see below), whose sum is σ = 4604688. Its totient is φ = 705600.

The previous prime is 2128067. The next prime is 2128099. The reversal of 2128070 is 708212.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21020 + ... + 21120.

It is an arithmetic number, because the mean of its divisors is an integer number (95931).

22128070 is an apocalyptic number.

2128070 is an abundant number, since it is smaller than the sum of its proper divisors (2476618).

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

2128070 is a wasteful number, since it uses less digits than its factorization.

2128070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2128070 is about 1458.7905949793. The cubic root of 2128070 is about 128.6259621691.

The spelling of 2128070 in words is "two million, one hundred twenty-eight thousand, seventy".

Divisors: 1 2 5 7 10 14 35 43 49 70 86 98 101 202 215 245 301 430 490 505 602 707 1010 1414 1505 2107 3010 3535 4214 4343 4949 7070 8686 9898 10535 21070 21715 24745 30401 43430 49490 60802 152005 212807 304010 425614 1064035 2128070