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12407089 = 8321801
BaseRepresentation
bin101111010101…
…000100110001
3212100100022211
4233111010301
511134011324
61121532121
7210313162
oct57250461
925310284
1012407089
1170046a2
1241a4041
132755396
14190d769
151151294
hexbd5131

12407089 has 6 divisors (see below), whose sum is σ = 12565346. Its totient is φ = 12250800.

The previous prime is 12407077. The next prime is 12407111. The reversal of 12407089 is 98070421.

12407089 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8439025 + 3968064 = 2905^2 + 1992^2 .

It is not a de Polignac number, because 12407089 - 215 = 12374321 is a prime.

It is a super-3 number, since 3×124070893 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12407089.

It is not an unprimeable number, because it can be changed into a prime (12407039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5989 + ... + 7789.

Almost surely, 212407089 is an apocalyptic number.

It is an amenable number.

12407089 is a deficient number, since it is larger than the sum of its proper divisors (158257).

12407089 is an frugal number, since it uses more digits than its factorization.

12407089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967 (or 1884 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12407089 is about 3522.3697988712. The cubic root of 12407089 is about 231.5030049042.

The spelling of 12407089 in words is "twelve million, four hundred seven thousand, eighty-nine".

Divisors: 1 83 1801 6889 149483 12407089