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12418380 = 22335132961
BaseRepresentation
bin101111010111…
…110101001100
3212100220211000
4233113311030
511134342010
61122100300
7210361122
oct57276514
925326730
1012418380
117012127
1241aa690
13275a570
141913912
1511547c0
hexbd7d4c

12418380 has 192 divisors, whose sum is σ = 43747200. Its totient is φ = 2903040.

The previous prime is 12418369. The next prime is 12418411. The reversal of 12418380 is 8381421.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 203550 + ... + 203610.

It is an arithmetic number, because the mean of its divisors is an integer number (227850).

Almost surely, 212418380 is an apocalyptic number.

12418380 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 12418380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21873600).

12418380 is an abundant number, since it is smaller than the sum of its proper divisors (31328820).

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

12418380 is a wasteful number, since it uses less digits than its factorization.

12418380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 12418380 is about 3523.9721905827. The cubic root of 12418380 is about 231.5732096048.

The spelling of 12418380 in words is "twelve million, four hundred eighteen thousand, three hundred eighty".