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4028971 = 4322179
BaseRepresentation
bin1111010111101000101011
321120200201011
433113220223
52012411341
6222204351
746150162
oct17275053
97520634
104028971
112302031
1214236b7
13ab0b0b
1476c3d9
15548b81
hex3d7a2b

4028971 has 6 divisors (see below), whose sum is σ = 4126740. Its totient is φ = 3933468.

The previous prime is 4028963. The next prime is 4028987. The reversal of 4028971 is 1798204.

It is not a de Polignac number, because 4028971 - 23 = 4028963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4028471) 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, 760 + ... + 2938.

It is an arithmetic number, because the mean of its divisors is an integer number (687790).

Almost surely, 24028971 is an apocalyptic number.

4028971 is a deficient number, since it is larger than the sum of its proper divisors (97769).

4028971 is an equidigital number, since it uses as much as digits as its factorization.

4028971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2222 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 4028971 is about 2007.2296829212. The cubic root of 4028971 is about 159.1224219678.

The spelling of 4028971 in words is "four million, twenty-eight thousand, nine hundred seventy-one".

Divisors: 1 43 1849 2179 93697 4028971