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83706429 = 397728559
BaseRepresentation
bin1001111110101…
…00001000111101
312211111201122010
410333110020331
5132412101204
612150041433
72034331032
oct477241075
9184451563
1083706429
1143282974
1224049279
131445a441
14b18d389
157536d89
hex4fd423d

83706429 has 8 divisors (see below), whose sum is σ = 111726720. Its totient is φ = 55745216.

The previous prime is 83706409. The next prime is 83706433. The reversal of 83706429 is 92460738.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83706429 - 29 = 83705917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83706409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11349 + ... + 17210.

It is an arithmetic number, because the mean of its divisors is an integer number (13965840).

Almost surely, 283706429 is an apocalyptic number.

It is an amenable number.

83706429 is a deficient number, since it is larger than the sum of its proper divisors (28020291).

83706429 is a wasteful number, since it uses less digits than its factorization.

83706429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29539.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 83706429 is about 9149.1217611310. The cubic root of 83706429 is about 437.4411201306.

The spelling of 83706429 in words is "eighty-three million, seven hundred six thousand, four hundred twenty-nine".

Divisors: 1 3 977 2931 28559 85677 27902143 83706429