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88542143 = 193145853
BaseRepresentation
bin1010100011100…
…00101110111111
320011121101222122
411101300232333
5140131322033
612441433155
72123411234
oct521605677
9204541878
1088542143
1145a86028
122579b7bb
1315461501
14ba8b78b
157b8ea98
hex5470bbf

88542143 has 4 divisors (see below), whose sum is σ = 88589928. Its totient is φ = 88494360.

The previous prime is 88542131. The next prime is 88542151. The reversal of 88542143 is 34124588.

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

It is a cyclic number.

It is not a de Polignac number, because 88542143 - 26 = 88542079 is a prime.

It is a super-2 number, since 2×885421432 = 15679422174064898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88542193) 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, 20996 + ... + 24857.

It is an arithmetic number, because the mean of its divisors is an integer number (22147482).

Almost surely, 288542143 is an apocalyptic number.

88542143 is a deficient number, since it is larger than the sum of its proper divisors (47785).

88542143 is a wasteful number, since it uses less digits than its factorization.

88542143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47784.

The product of its digits is 30720, while the sum is 35.

The square root of 88542143 is about 9409.6834697029. The cubic root of 88542143 is about 445.7075693677.

The spelling of 88542143 in words is "eighty-eight million, five hundred forty-two thousand, one hundred forty-three".

Divisors: 1 1931 45853 88542143