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7423980 = 2235123733
BaseRepresentation
bin11100010100011111101100
3111222011210020
4130110133230
53400031410
6423042140
7120050154
oct34243754
914864706
107423980
114210823
1225a0350
1316cc1b5
14db3764
159b9a70
hex7147ec

7423980 has 24 divisors (see below), whose sum is σ = 20787312. Its totient is φ = 1979712.

The previous prime is 7423967. The next prime is 7423991. The reversal of 7423980 is 893247.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61807 + ... + 61926.

It is an arithmetic number, because the mean of its divisors is an integer number (866138).

Almost surely, 27423980 is an apocalyptic number.

It is an amenable number.

7423980 is an abundant number, since it is smaller than the sum of its proper divisors (13363332).

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

7423980 is a wasteful number, since it uses less digits than its factorization.

7423980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123745 (or 123743 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 7423980 is about 2724.6981484194. The cubic root of 7423980 is about 195.0797832632.

The spelling of 7423980 in words is "seven million, four hundred twenty-three thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 123733 247466 371199 494932 618665 742398 1237330 1484796 1855995 2474660 3711990 7423980