Search a number
-
+
12550680 = 2333511621
BaseRepresentation
bin101111111000…
…001000011000
3212121122022000
4233320020120
511203110210
61125001000
7211451622
oct57701030
925548260
1012550680
1170a256a
124253160
1327a584c
141949c12
15117dac0
hexbf8218

12550680 has 64 divisors (see below), whose sum is σ = 41839200. Its totient is φ = 3346560.

The previous prime is 12550669. The next prime is 12550687. The reversal of 12550680 is 8605521.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12550687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4731 + ... + 6890.

Almost surely, 212550680 is an apocalyptic number.

12550680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12550680 is an abundant number, since it is smaller than the sum of its proper divisors (29288520).

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

12550680 is a wasteful number, since it uses less digits than its factorization.

12550680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11641 (or 11631 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 12550680 is about 3542.6938902479. The cubic root of 12550680 is about 232.3926663780.

It can be divided in two parts, 125 and 50680, that added together give a palindrome (50805).

The spelling of 12550680 in words is "twelve million, five hundred fifty thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 180 216 270 360 540 1080 11621 23242 34863 46484 58105 69726 92968 104589 116210 139452 174315 209178 232420 278904 313767 348630 418356 464840 522945 627534 697260 836712 1045890 1255068 1394520 1568835 2091780 2510136 3137670 4183560 6275340 12550680