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206046740 = 22529563631
BaseRepresentation
bin11000100100000…
…00011000010100
3112100201020222202
430102000120110
5410221443430
632240144032
75051240234
oct1422003024
9470636882
10206046740
11a6342a69
1259008018
13338c3663
141d517cc4
1513150d45
hexc480614

206046740 has 48 divisors (see below), whose sum is σ = 449124480. Its totient is φ = 79309440.

The previous prime is 206046713. The next prime is 206046751. The reversal of 206046740 is 47640602.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326225 + ... + 326855.

It is an arithmetic number, because the mean of its divisors is an integer number (9356760).

Almost surely, 2206046740 is an apocalyptic number.

206046740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206046740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224562240).

206046740 is an abundant number, since it is smaller than the sum of its proper divisors (243077740).

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

206046740 is a wasteful number, since it uses less digits than its factorization.

206046740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 206046740 is about 14354.3282671116. The cubic root of 206046740 is about 590.6387222440.

The spelling of 206046740 in words is "two hundred six million, forty-six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 563 580 631 1126 1262 2252 2524 2815 3155 5630 6310 11260 12620 16327 18299 32654 36598 65308 73196 81635 91495 163270 182990 326540 355253 365980 710506 1421012 1776265 3552530 7105060 10302337 20604674 41209348 51511685 103023370 206046740