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202006680 = 23353745497
BaseRepresentation
bin11000000101001…
…10000010011000
3112002010000001220
430002212002120
5403203203210
632013412040
75002012521
oct1402460230
9462100056
10202006680
11a4033677
125779a020
1332b0a7a5
141cb85848
1512b03c70
hexc0a6098

202006680 has 64 divisors (see below), whose sum is σ = 622412640. Its totient is φ = 52411392.

The previous prime is 202006669. The next prime is 202006681. The reversal of 202006680 is 86600202.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 202006680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202006681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18309 + ... + 27188.

Almost surely, 2202006680 is an apocalyptic number.

202006680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202006680 is an abundant number, since it is smaller than the sum of its proper divisors (420405960).

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

202006680 is a wasteful number, since it uses less digits than its factorization.

202006680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45548 (or 45544 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 202006680 is about 14212.9054031890. The cubic root of 202006680 is about 586.7528985389.

Adding to 202006680 its reverse (86600202), we get a palindrome (288606882).

The spelling of 202006680 in words is "two hundred two million, six thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 37 40 60 74 111 120 148 185 222 296 370 444 555 740 888 1110 1480 2220 4440 45497 90994 136491 181988 227485 272982 363976 454970 545964 682455 909940 1091928 1364910 1683389 1819880 2729820 3366778 5050167 5459640 6733556 8416945 10100334 13467112 16833890 20200668 25250835 33667780 40401336 50501670 67335560 101003340 202006680