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12977120 = 2551317367
BaseRepresentation
bin110001100000…
…001111100000
3220102022021002
4301200033200
511310231440
61142051132
7215206112
oct61401740
926368232
1012977120
1173639a2
124419aa8
1328c4990
141a1b3b2
151215115
hexc603e0

12977120 has 96 divisors (see below), whose sum is σ = 35054208. Its totient is φ = 4497408.

The previous prime is 12977119. The next prime is 12977131. The reversal of 12977120 is 2177921.

It is a zygodrome in base 2.

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, 35177 + ... + 35543.

It is an arithmetic number, because the mean of its divisors is an integer number (365148).

Almost surely, 212977120 is an apocalyptic number.

12977120 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 12977120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17527104).

12977120 is an abundant number, since it is smaller than the sum of its proper divisors (22077088).

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

12977120 is a wasteful number, since it uses less digits than its factorization.

12977120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 12977120 is about 3602.3769930422. The cubic root of 12977120 is about 234.9954427968.

The spelling of 12977120 in words is "twelve million, nine hundred seventy-seven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 65 68 80 85 104 130 136 160 170 208 221 260 272 340 367 416 442 520 544 680 734 884 1040 1105 1360 1468 1768 1835 2080 2210 2720 2936 3536 3670 4420 4771 5872 6239 7072 7340 8840 9542 11744 12478 14680 17680 19084 23855 24956 29360 31195 35360 38168 47710 49912 58720 62390 76336 81107 95420 99824 124780 152672 162214 190840 199648 249560 324428 381680 405535 499120 648856 763360 811070 998240 1297712 1622140 2595424 3244280 6488560 12977120