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2028970 = 251371481
BaseRepresentation
bin111101111010110101010
310211002020001
413233112222
51004411340
6111253214
723150236
oct7572652
93732201
102028970
111166439
1281a20a
13560698
143ab5c6
152a129a
hex1ef5aa

2028970 has 16 divisors (see below), whose sum is σ = 3681288. Its totient is φ = 805120.

The previous prime is 2028947. The next prime is 2028973. The reversal of 2028970 is 798202.

2028970 = T99 + T100 + ... + T235.

It can be written as a sum of positive squares in 4 ways, for example, as 1635841 + 393129 = 1279^2 + 627^2 .

It is not an unprimeable number, because it can be changed into a prime (2028973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630 + ... + 2110.

22028970 is an apocalyptic number.

2028970 is a deficient number, since it is larger than the sum of its proper divisors (1652318).

2028970 is a wasteful number, since it uses less digits than its factorization.

2028970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2028970 is about 1424.4191798765. The cubic root of 2028970 is about 126.5975230513.

The spelling of 2028970 in words is "two million, twenty-eight thousand, nine hundred seventy".

Divisors: 1 2 5 10 137 274 685 1370 1481 2962 7405 14810 202897 405794 1014485 2028970