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12371480 = 2351131907
BaseRepresentation
bin101111001100…
…011000011000
3212021112110222
4233030120120
511131341410
61121055212
7210104312
oct57143030
925245428
1012371480
116a8a970
124187508
132742104
1419007b2
151145955
hexbcc618

12371480 has 64 divisors (see below), whose sum is σ = 31380480. Its totient is φ = 4348800.

The previous prime is 12371473. The next prime is 12371497. The reversal of 12371480 is 8417321.

It is a congruent number.

It is an unprimeable number.

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, 13187 + ... + 14093.

It is an arithmetic number, because the mean of its divisors is an integer number (490320).

Almost surely, 212371480 is an apocalyptic number.

12371480 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 12371480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15690240).

12371480 is an abundant number, since it is smaller than the sum of its proper divisors (19009000).

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

12371480 is a wasteful number, since it uses less digits than its factorization.

12371480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960 (or 956 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12371480 is about 3517.3114732705. The cubic root of 12371480 is about 231.2813174046.

The spelling of 12371480 in words is "twelve million, three hundred seventy-one thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 20 22 31 40 44 55 62 88 110 124 155 220 248 310 341 440 620 682 907 1240 1364 1705 1814 2728 3410 3628 4535 6820 7256 9070 9977 13640 18140 19954 28117 36280 39908 49885 56234 79816 99770 112468 140585 199540 224936 281170 309287 399080 562340 618574 1124680 1237148 1546435 2474296 3092870 6185740 12371480