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89503661 = 1319362363
BaseRepresentation
bin1010101010110…
…11011110101101
320020102020221102
411111123132231
5140403104121
612514212445
72134524422
oct525333655
9206366842
1089503661
1146582475
1225b84125
131570a060
14bc5bd49
157cce90b
hex555b7ad

89503661 has 8 divisors (see below), whose sum is σ = 101461920. Its totient is φ = 78270192.

The previous prime is 89503643. The next prime is 89503693. The reversal of 89503661 is 16630598.

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

It is a de Polignac number, because none of the positive numbers 2k-89503661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89509661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180935 + ... + 181428.

It is an arithmetic number, because the mean of its divisors is an integer number (12682740).

Almost surely, 289503661 is an apocalyptic number.

It is an amenable number.

89503661 is a deficient number, since it is larger than the sum of its proper divisors (11958259).

89503661 is a wasteful number, since it uses less digits than its factorization.

89503661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362395.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 89503661 is about 9460.6374520959. The cubic root of 89503661 is about 447.3151422738.

The spelling of 89503661 in words is "eighty-nine million, five hundred three thousand, six hundred sixty-one".

Divisors: 1 13 19 247 362363 4710719 6884897 89503661