Search a number
-
+
12877480 = 23571137113
BaseRepresentation
bin110001000111…
…111010101000
3220020020120201
4301013322220
511244034410
61140001544
7214312450
oct61077250
926206521
1012877480
1172a6050
1243902b4
13288b515
1419d2d60
1511e583a
hexc47ea8

12877480 has 128 divisors (see below), whose sum is σ = 37428480. Its totient is φ = 3870720.

The previous prime is 12877477. The next prime is 12877507. The reversal of 12877480 is 8477821.

12877480 = 2802 + 2812 + ... + 3922.

12877480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113904 + ... + 114016.

It is an arithmetic number, because the mean of its divisors is an integer number (292410).

Almost surely, 212877480 is an apocalyptic number.

12877480 is a gapful number since it is divisible by the number (10) 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 12877480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18714240).

12877480 is an abundant number, since it is smaller than the sum of its proper divisors (24551000).

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

12877480 is a wasteful number, since it uses less digits than its factorization.

12877480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 12877480 is about 3588.5205865370. The cubic root of 12877480 is about 234.3924551148.

The spelling of 12877480 in words is "twelve million, eight hundred seventy-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 11 14 20 22 28 35 37 40 44 55 56 70 74 77 88 110 113 140 148 154 185 220 226 259 280 296 308 370 385 407 440 452 518 565 616 740 770 791 814 904 1036 1130 1243 1295 1480 1540 1582 1628 2035 2072 2260 2486 2590 2849 3080 3164 3256 3955 4070 4181 4520 4972 5180 5698 6215 6328 7910 8140 8362 8701 9944 10360 11396 12430 14245 15820 16280 16724 17402 20905 22792 24860 28490 29267 31640 33448 34804 41810 43505 45991 49720 56980 58534 69608 83620 87010 91982 113960 117068 146335 167240 174020 183964 229955 234136 292670 321937 348040 367928 459910 585340 643874 919820 1170680 1287748 1609685 1839640 2575496 3219370 6438740 12877480