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84130553 = 1321130671
BaseRepresentation
bin1010000001110…
…11101011111001
312212022021102102
411000323223321
5133014134203
612203113145
72041045403
oct500735371
9185267372
1084130553
1143542591
12242127b5
13145784c0
14b25db73
1575bc888
hex503baf9

84130553 has 8 divisors (see below), whose sum is σ = 91034496. Its totient is φ = 77288400.

The previous prime is 84130547. The next prime is 84130567. The reversal of 84130553 is 35503148.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-84130553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84130583) 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, 12593 + ... + 18078.

It is an arithmetic number, because the mean of its divisors is an integer number (11379312).

Almost surely, 284130553 is an apocalyptic number.

It is an amenable number.

84130553 is a deficient number, since it is larger than the sum of its proper divisors (6903943).

84130553 is a wasteful number, since it uses less digits than its factorization.

84130553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30895.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 84130553 is about 9172.2708747616. The cubic root of 84130553 is about 438.1786851824.

The spelling of 84130553 in words is "eighty-four million, one hundred thirty thousand, five hundred fifty-three".

Divisors: 1 13 211 2743 30671 398723 6471581 84130553