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34428285 = 3251967601
BaseRepresentation
bin1000001101010…
…1010101111101
32101210010201200
42003111111331
532303201120
63225530113
7565431003
oct203252575
971703650
1034428285
1118485531
12b643939
137195788
144802a73
153050e90
hex20d557d

34428285 has 48 divisors (see below), whose sum is σ = 63860160. Its totient is φ = 17107200.

The previous prime is 34428269. The next prime is 34428287. The reversal of 34428285 is 58282443.

It is not a de Polignac number, because 34428285 - 24 = 34428269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34428287) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56985 + ... + 57585.

It is an arithmetic number, because the mean of its divisors is an integer number (1330420).

Almost surely, 234428285 is an apocalyptic number.

It is an amenable number.

34428285 is a deficient number, since it is larger than the sum of its proper divisors (29431875).

34428285 is a wasteful number, since it uses less digits than its factorization.

34428285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 695 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 34428285 is about 5867.5621002253. The cubic root of 34428285 is about 325.3157798643.

The spelling of 34428285 in words is "thirty-four million, four hundred twenty-eight thousand, two hundred eighty-five".

Divisors: 1 3 5 9 15 19 45 57 67 95 171 201 285 335 601 603 855 1005 1273 1803 3005 3015 3819 5409 6365 9015 11419 11457 19095 27045 34257 40267 57095 57285 102771 120801 171285 201335 362403 513855 604005 765073 1812015 2295219 3825365 6885657 11476095 34428285