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4028972 = 221007243
BaseRepresentation
bin1111010111101000101100
321120200201012
433113220230
52012411342
6222204352
746150163
oct17275054
97520635
104028972
112302032
1214236b8
13ab0b0c
1476c3da
15548b82
hex3d7a2c

4028972 has 6 divisors (see below), whose sum is σ = 7050708. Its totient is φ = 2014484.

The previous prime is 4028963. The next prime is 4028987. The reversal of 4028972 is 2798204.

4028972 is nontrivially palindromic in base 11.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503618 + ... + 503625.

It is an arithmetic number, because the mean of its divisors is an integer number (1175118).

Almost surely, 24028972 is an apocalyptic number.

It is an amenable number.

4028972 is a deficient number, since it is larger than the sum of its proper divisors (3021736).

4028972 is a wasteful number, since it uses less digits than its factorization.

4028972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007247 (or 1007245 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 4028972 is about 2007.2299320207. The cubic root of 4028972 is about 159.1224351326.

The spelling of 4028972 in words is "four million, twenty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 4 1007243 2014486 4028972