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89438755 = 572988117
BaseRepresentation
bin1010101010010…
…11101000100011
320020021221220111
411111023220203
5140344020010
612512552151
72134134250
oct525135043
9206257814
1089438755
114653872a
1225b52657
13156b6653
14bc42427
157cba58a
hex554ba23

89438755 has 16 divisors (see below), whose sum is σ = 126889920. Its totient is φ = 59213952.

The previous prime is 89438737. The next prime is 89438761. The reversal of 89438755 is 55783498.

It is not a de Polignac number, because 89438755 - 29 = 89438243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89438699 and 89438708.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 43044 + ... + 45073.

It is an arithmetic number, because the mean of its divisors is an integer number (7930620).

Almost surely, 289438755 is an apocalyptic number.

89438755 is a deficient number, since it is larger than the sum of its proper divisors (37451165).

89438755 is a wasteful number, since it uses less digits than its factorization.

89438755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88158.

The product of its digits is 1209600, while the sum is 49.

The square root of 89438755 is about 9457.2065114388. The cubic root of 89438755 is about 447.2069885690.

The spelling of 89438755 in words is "eighty-nine million, four hundred thirty-eight thousand, seven hundred fifty-five".

Divisors: 1 5 7 29 35 145 203 1015 88117 440585 616819 2555393 3084095 12776965 17887751 89438755