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2028470 = 25712857
BaseRepresentation
bin111101111001110110110
310211001112112
413233032312
51004402340
6111251022
723145623
oct7571666
93731475
102028470
111166024
12819a72
135603a2
143ab34a
152a1065
hex1ef3b6

2028470 has 16 divisors (see below), whose sum is σ = 3703968. Its totient is φ = 799680.

The previous prime is 2028461. The next prime is 2028487. The reversal of 2028470 is 748202.

It is a super-2 number, since 2×20284702 = 8229381081800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719 + ... + 2138.

It is an arithmetic number, because the mean of its divisors is an integer number (231498).

22028470 is an apocalyptic number.

2028470 is a deficient number, since it is larger than the sum of its proper divisors (1675498).

2028470 is a wasteful number, since it uses less digits than its factorization.

2028470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2028470 is about 1424.2436589292. The cubic root of 2028470 is about 126.5871230353.

The spelling of 2028470 in words is "two million, twenty-eight thousand, four hundred seventy".

Divisors: 1 2 5 10 71 142 355 710 2857 5714 14285 28570 202847 405694 1014235 2028470