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2108628 = 223258573
BaseRepresentation
bin1000000010110011010100
310222010111100
420002303110
51014434003
6113110100
723631414
oct10026324
93863440
102108628
111210275
12858330
1358aa12
143cc644
152b9ba3
hex202cd4

2108628 has 18 divisors (see below), whose sum is σ = 5330234. Its totient is φ = 702864.

The previous prime is 2108627. The next prime is 2108641. The reversal of 2108628 is 8268012.

It can be written as a sum of positive squares in only one way, i.e., 2108304 + 324 = 1452^2 + 18^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29251 + ... + 29322.

22108628 is an apocalyptic number.

It is an amenable number.

2108628 is an abundant number, since it is smaller than the sum of its proper divisors (3221606).

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

2108628 is a wasteful number, since it uses less digits than its factorization.

2108628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58583 (or 58578 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 2108628 is about 1452.1115659618. Note that the first 3 decimals coincide. The cubic root of 2108628 is about 128.2330552263.

The spelling of 2108628 in words is "two million, one hundred eight thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 58573 117146 175719 234292 351438 527157 702876 1054314 2108628