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87029248 = 29435967
BaseRepresentation
bin1010010111111…
…11011000000000
320001202112200111
411023333120000
5134234413443
612345201104
72104510405
oct513773000
9201675614
1087029248
11451423a9
1225190194
13150519c7
14b7b62ac
15799169d
hex52ff600

87029248 has 80 divisors (see below), whose sum is σ = 183648960. Its totient is φ = 41158656.

The previous prime is 87029237. The next prime is 87029269. The reversal of 87029248 is 84292078.

It is a self number, because there is not a number n which added to its sum of digits gives 87029248.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1298911 + ... + 1298977.

It is an arithmetic number, because the mean of its divisors is an integer number (2295612).

Almost surely, 287029248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87029248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91824480).

87029248 is an abundant number, since it is smaller than the sum of its proper divisors (96619712).

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

87029248 is an equidigital number, since it uses as much as digits as its factorization.

87029248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 87029248 is about 9328.9467787098. The cubic root of 87029248 is about 443.1544115029.

The spelling of 87029248 in words is "eighty-seven million, twenty-nine thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 32 43 59 64 67 86 118 128 134 172 236 256 268 344 472 512 536 688 944 1072 1376 1888 2144 2537 2752 2881 3776 3953 4288 5074 5504 5762 7552 7906 8576 10148 11008 11524 15104 15812 17152 20296 22016 23048 30208 31624 34304 40592 46096 63248 81184 92192 126496 162368 169979 184384 252992 324736 339958 368768 505984 649472 679916 737536 1011968 1298944 1359832 1475072 2023936 2719664 5439328 10878656 21757312 43514624 87029248