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93989968 = 2411095297
BaseRepresentation
bin1011001101000…
…10110001010000
320112212011222221
411212202301100
5143030134333
613154310424
72220621142
oct546426120
9215764887
1093989968
1149067066
1227588414
131661b087
14c6a8c92
1583b8d2d
hex59a2c50

93989968 has 20 divisors (see below), whose sum is σ = 182304180. Its totient is φ = 46943744.

The previous prime is 93989933. The next prime is 93989969. The reversal of 93989968 is 86998939.

It can be written as a sum of positive squares in 2 ways, for example, as 32398864 + 61591104 = 5692^2 + 7848^2 .

It is a super-2 number, since 2×939899682 = 17668228169282048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93989969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15096 + ... + 20392.

It is an arithmetic number, because the mean of its divisors is an integer number (9115209).

Almost surely, 293989968 is an apocalyptic number.

It is an amenable number.

93989968 is a deficient number, since it is larger than the sum of its proper divisors (88314212).

93989968 is a wasteful number, since it uses less digits than its factorization.

93989968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6414 (or 6408 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 61.

The square root of 93989968 is about 9694.8423401312. The cubic root of 93989968 is about 454.6674186752.

The spelling of 93989968 in words is "ninety-three million, nine hundred eighty-nine thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 1109 2218 4436 5297 8872 10594 17744 21188 42376 84752 5874373 11748746 23497492 46994984 93989968