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9487429 = 72375233
BaseRepresentation
bin100100001100…
…010001000101
3122212000022021
4210030101011
54412044204
6535203141
7143433100
oct44142105
918760267
109487429
1153a0056
1232164b1
131c72483
14138d737
15c76154
hex90c445

9487429 has 12 divisors (see below), whose sum is σ = 11336844. Its totient is φ = 7910784.

The previous prime is 9487427. The next prime is 9487451. The reversal of 9487429 is 9247849.

It can be written as a sum of positive squares in 2 ways, for example, as 8850625 + 636804 = 2975^2 + 798^2 .

It is not a de Polignac number, because 9487429 - 21 = 9487427 is a prime.

It is a super-2 number, since 2×94874292 = 180022618060082, which contains 22 as substring.

It is a d-powerful number, because it can be written as 94 + 4 + 8 + 77 + 49 + 223 + 94 .

It is a Duffinian number.

9487429 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9487421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 804 + ... + 4429.

It is an arithmetic number, because the mean of its divisors is an integer number (944737).

Almost surely, 29487429 is an apocalyptic number.

It is an amenable number.

9487429 is a deficient number, since it is larger than the sum of its proper divisors (1849415).

9487429 is a wasteful number, since it uses less digits than its factorization.

9487429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5284 (or 5277 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 9487429 is about 3080.1670409249. The cubic root of 9487429 is about 211.6977194885.

The spelling of 9487429 in words is "nine million, four hundred eighty-seven thousand, four hundred twenty-nine".

Divisors: 1 7 37 49 259 1813 5233 36631 193621 256417 1355347 9487429