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207830430 = 23252309227
BaseRepresentation
bin11000110001100…
…11110110011110
3112111001212202100
430120303312132
5411201033210
632342305530
75102346423
oct1430636636
9474055670
10207830430
11a7351095
12597282a6
13340994b2
141d85dd4a
15133a45c0
hexc633d9e

207830430 has 24 divisors (see below), whose sum is σ = 540359352. Its totient is φ = 55421424.

The previous prime is 207830429. The next prime is 207830431. The reversal of 207830430 is 34038702.

It is an interprime number because it is at equal distance from previous prime (207830429) and next prime (207830431).

It is a junction number, because it is equal to n+sod(n) for n = 207830394 and 207830403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207830431) 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, 1154524 + ... + 1154703.

It is an arithmetic number, because the mean of its divisors is an integer number (22514973).

Almost surely, 2207830430 is an apocalyptic number.

207830430 is an abundant number, since it is smaller than the sum of its proper divisors (332528922).

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

207830430 is a wasteful number, since it uses less digits than its factorization.

207830430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309240 (or 2309237 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 207830430 is about 14416.3251211951. The cubic root of 207830430 is about 592.3381601455.

The spelling of 207830430 in words is "two hundred seven million, eight hundred thirty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 2309227 4618454 6927681 11546135 13855362 20783043 23092270 34638405 41566086 69276810 103915215 207830430