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4428207 = 32770289
BaseRepresentation
bin10000111001000110101111
322022222100200
4100321012233
52113200312
6234524543
752432140
oct20710657
98288320
104428207
112554a83
121596753
13bc0754
14833ac7
155c70dc
hex4391af

4428207 has 12 divisors (see below), whose sum is σ = 7310160. Its totient is φ = 2530368.

The previous prime is 4428191. The next prime is 4428223. The reversal of 4428207 is 7028244.

4428207 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4428191) and next prime (4428223).

It is not a de Polignac number, because 4428207 - 24 = 4428191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35082 + ... + 35207.

It is an arithmetic number, because the mean of its divisors is an integer number (609180).

Almost surely, 24428207 is an apocalyptic number.

4428207 is a deficient number, since it is larger than the sum of its proper divisors (2881953).

4428207 is a wasteful number, since it uses less digits than its factorization.

4428207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70302 (or 70299 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 4428207 is about 2104.3305348733. The cubic root of 4428207 is about 164.2136690493.

It can be divided in two parts, 442 and 8207, that added together give a square (8649 = 932).

The spelling of 4428207 in words is "four million, four hundred twenty-eight thousand, two hundred seven".

Divisors: 1 3 7 9 21 63 70289 210867 492023 632601 1476069 4428207