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1418980 = 22570949
BaseRepresentation
bin101011010011011100100
32200002110211
411122123210
5330401410
650225204
715026653
oct5323344
92602424
101418980
1188a112
12585204
133a8b44
1428d19a
151d068a
hex15a6e4

1418980 has 12 divisors (see below), whose sum is σ = 2979900. Its totient is φ = 567584.

The previous prime is 1418959. The next prime is 1418983. The reversal of 1418980 is 898141.

It can be written as a sum of positive squares in 2 ways, for example, as 788544 + 630436 = 888^2 + 794^2 .

It is not an unprimeable number, because it can be changed into a prime (1418983) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35455 + ... + 35494.

It is an arithmetic number, because the mean of its divisors is an integer number (248325).

21418980 is an apocalyptic number.

1418980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1418980 is an abundant number, since it is smaller than the sum of its proper divisors (1560920).

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

1418980 is a wasteful number, since it uses less digits than its factorization.

1418980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70958 (or 70956 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 1418980 is about 1191.2094694049. The cubic root of 1418980 is about 112.3721675577.

The spelling of 1418980 in words is "one million, four hundred eighteen thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 70949 141898 283796 354745 709490 1418980