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88264989 = 3216360167
BaseRepresentation
bin1010100001011…
…01000100011101
320011002022210200
411100231010131
5140043434424
612431454113
72121145221
oct520550435
9204068720
1088264989
114590687a
1225687339
1315395307
14ba18781
157b378c9
hex542d11d

88264989 has 12 divisors (see below), whose sum is σ = 128278176. Its totient is φ = 58481352.

The previous prime is 88264909. The next prime is 88264991. The reversal of 88264989 is 98946288.

It is not a de Polignac number, because 88264989 - 28 = 88264733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88264909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28617 + ... + 31550.

It is an arithmetic number, because the mean of its divisors is an integer number (10689848).

Almost surely, 288264989 is an apocalyptic number.

It is an amenable number.

88264989 is a deficient number, since it is larger than the sum of its proper divisors (40013187).

88264989 is a wasteful number, since it uses less digits than its factorization.

88264989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60336 (or 60333 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 88264989 is about 9394.9448641277. The cubic root of 88264989 is about 445.2420330455.

It can be divided in two parts, 88264 and 989, that added together give a triangular number (89253 = T422).

The spelling of 88264989 in words is "eighty-eight million, two hundred sixty-four thousand, nine hundred eighty-nine".

Divisors: 1 3 9 163 489 1467 60167 180501 541503 9807221 29421663 88264989