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88471393 = 193458401
BaseRepresentation
bin1010100010111…
…11011101100001
320011110210221021
411101133131201
5140122041033
612440125441
72122665043
oct521373541
9204423837
1088471393
1145a3795a
1225766881
131543824a
14ba6da93
157b78b2d
hex545f761

88471393 has 4 divisors (see below), whose sum is σ = 88929988. Its totient is φ = 88012800.

The previous prime is 88471387. The next prime is 88471421. The reversal of 88471393 is 39317488.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47100769 + 41370624 = 6863^2 + 6432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-88471393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88471193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229008 + ... + 229393.

It is an arithmetic number, because the mean of its divisors is an integer number (22232497).

Almost surely, 288471393 is an apocalyptic number.

It is an amenable number.

88471393 is a deficient number, since it is larger than the sum of its proper divisors (458595).

88471393 is a wasteful number, since it uses less digits than its factorization.

88471393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458594.

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

The square root of 88471393 is about 9405.9232933296. The cubic root of 88471393 is about 445.5888228504.

The spelling of 88471393 in words is "eighty-eight million, four hundred seventy-one thousand, three hundred ninety-three".

Divisors: 1 193 458401 88471393