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88513680 = 24353111897
BaseRepresentation
bin1010100011010…
…01110010010000
320011112221221110
411101221302100
5140124414210
612441053320
72123232243
oct521516220
9204487843
1088513680
1145a66702
1225787240
1315451578
14ba8125a
157b86420
hex5469c90

88513680 has 80 divisors (see below), whose sum is σ = 283267584. Its totient is φ = 22840320.

The previous prime is 88513619. The next prime is 88513693. The reversal of 88513680 is 8631588.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1492 + ... + 13388.

Almost surely, 288513680 is an apocalyptic number.

88513680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88513680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141633792).

88513680 is an abundant number, since it is smaller than the sum of its proper divisors (194753904).

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

88513680 is a wasteful number, since it uses less digits than its factorization.

88513680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11944 (or 11938 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 88513680 is about 9408.1709168148. The cubic root of 88513680 is about 445.6598047901.

The spelling of 88513680 in words is "eighty-eight million, five hundred thirteen thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 40 48 60 62 80 93 120 124 155 186 240 248 310 372 465 496 620 744 930 1240 1488 1860 2480 3720 7440 11897 23794 35691 47588 59485 71382 95176 118970 142764 178455 190352 237940 285528 356910 368807 475880 571056 713820 737614 951760 1106421 1427640 1475228 1844035 2212842 2855280 2950456 3688070 4425684 5532105 5900912 7376140 8851368 11064210 14752280 17702736 22128420 29504560 44256840 88513680