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88904720 = 2452938321
BaseRepresentation
bin1010100110010…
…01010000010000
320012021211100102
411103021100100
5140224422340
612453311532
72126451302
oct523112020
9205254312
1088904720
1146203483
12259355a8
131555a558
14bb43972
157c12215
hex54c9410

88904720 has 40 divisors (see below), whose sum is σ = 213836760. Its totient is φ = 34334720.

The previous prime is 88904719. The next prime is 88904773. The reversal of 88904720 is 2740988.

It can be written as a sum of positive squares in 4 ways, for example, as 13075456 + 75829264 = 3616^2 + 8708^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16841 + ... + 21480.

It is an arithmetic number, because the mean of its divisors is an integer number (5345919).

Almost surely, 288904720 is an apocalyptic number.

88904720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88904720 is an abundant number, since it is smaller than the sum of its proper divisors (124932040).

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

88904720 is a wasteful number, since it uses less digits than its factorization.

88904720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38363 (or 38357 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 88904720 is about 9428.9299498936. The cubic root of 88904720 is about 446.3151264839.

The spelling of 88904720 in words is "eighty-eight million, nine hundred four thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 580 1160 2320 38321 76642 153284 191605 306568 383210 613136 766420 1111309 1532840 2222618 3065680 4445236 5556545 8890472 11113090 17780944 22226180 44452360 88904720