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397000208 = 24113117253
BaseRepresentation
bin10111101010011…
…011111000010000
31000200000200220102
4113222123320100
51303113001313
6103221031532
712560306003
oct2752337020
91020020812
10397000208
11194107150
12b0b555a8
1364331087
143aa2353a
1524cbea58
hex17a9be10

397000208 has 40 divisors (see below), whose sum is σ = 841928256. Its totient is φ = 179849600.

The previous prime is 397000189. The next prime is 397000223. The reversal of 397000208 is 802000793.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51110 + ... + 58362.

Almost surely, 2397000208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397000208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420964128).

397000208 is an abundant number, since it is smaller than the sum of its proper divisors (444928048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397000208 is a wasteful number, since it uses less digits than its factorization.

397000208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7583 (or 7577 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 397000208 is about 19924.8640647810. The cubic root of 397000208 is about 734.9597880109.

The spelling of 397000208 in words is "three hundred ninety-seven million, two hundred eight", and thus it is an aban number.

Divisors: 1 2 4 8 11 16 22 44 88 176 311 622 1244 2488 3421 4976 6842 7253 13684 14506 27368 29012 54736 58024 79783 116048 159566 319132 638264 1276528 2255683 4511366 9022732 18045464 24812513 36090928 49625026 99250052 198500104 397000208