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89120701 = 101387977
BaseRepresentation
bin1010100111111…
…01111110111101
320012200210121201
411103331332331
5140303330301
612502055501
72131341055
oct523757675
9205623551
1089120701
114634077a
1225a1a591
1315604957
14bb9c565
157c56201
hex54fdfbd

89120701 has 4 divisors (see below), whose sum is σ = 89209692. Its totient is φ = 89031712.

The previous prime is 89120693. The next prime is 89120711. The reversal of 89120701 is 10702198.

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 40832100 + 48288601 = 6390^2 + 6949^2 .

It is a cyclic number.

It is not a de Polignac number, because 89120701 - 23 = 89120693 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 89120701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89120711) 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, 42976 + ... + 45001.

It is an arithmetic number, because the mean of its divisors is an integer number (22302423).

Almost surely, 289120701 is an apocalyptic number.

It is an amenable number.

89120701 is a deficient number, since it is larger than the sum of its proper divisors (88991).

89120701 is a wasteful number, since it uses less digits than its factorization.

89120701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88990.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 89120701 is about 9440.3761047958. The cubic root of 89120701 is about 446.6762532904.

Adding to 89120701 its reverse (10702198), we get a palindrome (99822899).

The spelling of 89120701 in words is "eighty-nine million, one hundred twenty thousand, seven hundred one".

Divisors: 1 1013 87977 89120701