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2729028 = 223227419
BaseRepresentation
bin1010011010010001000100
312010122112010
422122101010
51144312103
6134254220
732124231
oct12322104
95118463
102729028
1115a43a5
12ab7370
13747213
14510788
1538d903
hex29a444

2729028 has 12 divisors (see below), whose sum is σ = 6367760. Its totient is φ = 909672.

The previous prime is 2729017. The next prime is 2729029. The reversal of 2729028 is 8209272.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2728986 and 2729004.

It is not an unprimeable number, because it can be changed into a prime (2729029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113698 + ... + 113721.

22729028 is an apocalyptic number.

It is an amenable number.

2729028 is an abundant number, since it is smaller than the sum of its proper divisors (3638732).

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

2729028 is a wasteful number, since it uses less digits than its factorization.

2729028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227426 (or 227424 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2729028 is about 1651.9769974185. The cubic root of 2729028 is about 139.7449096384.

The spelling of 2729028 in words is "two million, seven hundred twenty-nine thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 227419 454838 682257 909676 1364514 2729028