Search a number
-
+
12712700 = 225271113127
BaseRepresentation
bin110000011111…
…101011111100
3212220212112202
4300133223330
511223301300
61132251032
7213025160
oct60375374
925825482
1012712700
1171a3270
124310a78
132831510
14198cca0
1511b1ad5
hexc1fafc

12712700 has 144 divisors (see below), whose sum is σ = 37330944. Its totient is φ = 3628800.

The previous prime is 12712699. The next prime is 12712703. The reversal of 12712700 is 721721.

It is a super-2 number, since 2×127127002 = 323225482580000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12712703) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100037 + ... + 100163.

Almost surely, 212712700 is an apocalyptic number.

12712700 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 12712700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18665472).

12712700 is an abundant number, since it is smaller than the sum of its proper divisors (24618244).

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

12712700 is a wasteful number, since it uses less digits than its factorization.

12712700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 12712700 is about 3565.4873439686. The cubic root of 12712700 is about 233.3883997018.

It can be divided in two parts, 127 and 12700, that multiplied together give a square (1612900 = 12702).

The spelling of 12712700 in words is "twelve million, seven hundred twelve thousand, seven hundred".

Divisors: 1 2 4 5 7 10 11 13 14 20 22 25 26 28 35 44 50 52 55 65 70 77 91 100 110 127 130 140 143 154 175 182 220 254 260 275 286 308 325 350 364 385 455 508 550 572 635 650 700 715 770 889 910 1001 1100 1270 1300 1397 1430 1540 1651 1778 1820 1925 2002 2275 2540 2794 2860 3175 3302 3556 3575 3850 4004 4445 4550 5005 5588 6350 6604 6985 7150 7700 8255 8890 9100 9779 10010 11557 12700 13970 14300 16510 17780 18161 19558 20020 22225 23114 25025 27940 33020 34925 36322 39116 41275 44450 46228 48895 50050 57785 69850 72644 82550 88900 90805 97790 100100 115570 127127 139700 165100 181610 195580 231140 244475 254254 288925 363220 454025 488950 508508 577850 635635 908050 977900 1155700 1271270 1816100 2542540 3178175 6356350 12712700