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87051200 = 2652411327
BaseRepresentation
bin1010011000001…
…00101111000000
320001210122210112
411030010233000
5134241114300
612345450452
72104631405
oct514045700
9201718715
1087051200
1145157945
12251a0a28
131505b9b2
14b7c02ac
157997e35
hex5304bc0

87051200 has 84 divisors (see below), whose sum is σ = 219590112. Its totient is φ = 33945600.

The previous prime is 87051199. The next prime is 87051253. The reversal of 87051200 is 215078.

It is a super-2 number, since 2×870512002 = 15155822842880000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64937 + ... + 66263.

It is an arithmetic number, because the mean of its divisors is an integer number (2614168).

Almost surely, 287051200 is an apocalyptic number.

87051200 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 87051200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109795056).

87051200 is an abundant number, since it is smaller than the sum of its proper divisors (132538912).

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

87051200 is a wasteful number, since it uses less digits than its factorization.

87051200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1375 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 87051200 is about 9330.1232574924. The cubic root of 87051200 is about 443.1916683564.

Adding to 87051200 its reverse (215078), we get a palindrome (87266278).

The spelling of 87051200 in words is "eighty-seven million, fifty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 41 50 64 80 82 100 160 164 200 205 320 328 400 410 656 800 820 1025 1312 1327 1600 1640 2050 2624 2654 3280 4100 5308 6560 6635 8200 10616 13120 13270 16400 21232 26540 32800 33175 42464 53080 54407 65600 66350 84928 106160 108814 132700 212320 217628 265400 272035 424640 435256 530800 544070 870512 1061600 1088140 1360175 1741024 2123200 2176280 2720350 3482048 4352560 5440700 8705120 10881400 17410240 21762800 43525600 87051200