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88897161 = 329632387
BaseRepresentation
bin1010100110001…
…11011010001001
320012021102222110
411103013122021
5140224202121
612453212533
72126420253
oct523073211
9205242873
1088897161
11461a8831
1225931149
1315556c92
14bb40cd3
157c0ed76
hex54c7689

88897161 has 4 divisors (see below), whose sum is σ = 118529552. Its totient is φ = 59264772.

The previous prime is 88897147. The next prime is 88897177. The reversal of 88897161 is 16179888.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 88897161 - 211 = 88895113 is a prime.

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 88897161.

It is not an unprimeable number, because it can be changed into a prime (88897111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14816191 + ... + 14816196.

It is an arithmetic number, because the mean of its divisors is an integer number (29632388).

Almost surely, 288897161 is an apocalyptic number.

It is an amenable number.

88897161 is a deficient number, since it is larger than the sum of its proper divisors (29632391).

88897161 is a wasteful number, since it uses less digits than its factorization.

88897161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29632390.

The product of its digits is 193536, while the sum is 48.

The square root of 88897161 is about 9428.5291005543. The cubic root of 88897161 is about 446.3024770180.

The spelling of 88897161 in words is "eighty-eight million, eight hundred ninety-seven thousand, one hundred sixty-one".

Divisors: 1 3 29632387 88897161