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88353990 = 2345195741
BaseRepresentation
bin1010100010000…
…10110011000110
320011020211220000
411101002303012
5140104311430
612433422130
72121665544
oct521026306
9204224800
1088353990
114596772a
122570a946
13153c698a
14ba3cd94
157b53e60
hex5442cc6

88353990 has 80 divisors (see below), whose sum is σ = 250121520. Its totient is φ = 22317120.

The previous prime is 88353989. The next prime is 88353997. The reversal of 88353990 is 9935388.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88353997) 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 39 ways as a sum of consecutive naturals, for example, 12520 + ... + 18260.

It is an arithmetic number, because the mean of its divisors is an integer number (3126519).

Almost surely, 288353990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88353990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125060760).

88353990 is an abundant number, since it is smaller than the sum of its proper divisors (161767530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88353990 is a wasteful number, since it uses less digits than its factorization.

88353990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5779 (or 5770 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 88353990 is about 9399.6803137128. The cubic root of 88353990 is about 445.3916343576.

The spelling of 88353990 in words is "eighty-eight million, three hundred fifty-three thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 19 27 30 38 45 54 57 81 90 95 114 135 162 171 190 270 285 342 405 513 570 810 855 1026 1539 1710 2565 3078 5130 5741 7695 11482 15390 17223 28705 34446 51669 57410 86115 103338 109079 155007 172230 218158 258345 310014 327237 465021 516690 545395 654474 775035 930042 981711 1090790 1550070 1636185 1963422 2325105 2945133 3272370 4650210 4908555 5890266 8835399 9817110 14725665 17670798 29451330 44176995 88353990