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200080686 = 231329197449
BaseRepresentation
bin10111110110011…
…11110100101110
3111221111011002210
423323033310232
5402210040221
631504231250
74646441421
oct1373176456
9457434083
10200080686
11a2a38643
125700b526
13325b4c50
141c8039b8
1512873276
hexbecfd2e

200080686 has 64 divisors (see below), whose sum is σ = 449064000. Its totient is φ = 59006976.

The previous prime is 200080681. The next prime is 200080687. The reversal of 200080686 is 686080002.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200080681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 445390 + ... + 445838.

It is an arithmetic number, because the mean of its divisors is an integer number (7016625).

Almost surely, 2200080686 is an apocalyptic number.

200080686 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 200080686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224532000).

200080686 is an abundant number, since it is smaller than the sum of its proper divisors (248983314).

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

200080686 is a wasteful number, since it uses less digits than its factorization.

200080686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 200080686 is about 14144.9880169621. The cubic root of 200080686 is about 584.8821795011.

The spelling of 200080686 in words is "two hundred million, eighty thousand, six hundred eighty-six".

Divisors: 1 2 3 6 13 26 29 39 58 78 87 174 197 377 394 449 591 754 898 1131 1182 1347 2262 2561 2694 5122 5713 5837 7683 11426 11674 13021 15366 17139 17511 26042 34278 35022 39063 74269 78126 88453 148538 169273 176906 222807 265359 338546 445614 507819 530718 1015638 1149889 2299778 2565137 3449667 5130274 6899334 7695411 15390822 33346781 66693562 100040343 200080686