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75864100 = 2252132672
BaseRepresentation
bin1001000010110…
…01100000100100
312021202021222111
410201121200210
5123410122400
611310010404
71610556064
oct441314044
9167667874
1075864100
1139906904
12214a6a04
1312942a00
14a10b3a4
1569d83ba
hex4859824

75864100 has 81 divisors (see below), whose sum is σ = 180963027. Its totient is φ = 27593280.

The previous prime is 75864079. The next prime is 75864121. The reversal of 75864100 is 146857.

The square root of 75864100 is 8710.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (75864079) and next prime (75864121).

It can be written as a sum of positive squares in 4 ways, for example, as 19554084 + 56310016 = 4422^2 + 7504^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1132267 + ... + 1132333.

Almost surely, 275864100 is an apocalyptic number.

75864100 is the 8710-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75864100

75864100 is an abundant number, since it is smaller than the sum of its proper divisors (105098927).

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

75864100 is a wasteful number, since it uses less digits than its factorization.

75864100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The cubic root of 75864100 is about 423.3297304066.

The spelling of 75864100 in words is "seventy-five million, eight hundred sixty-four thousand, one hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 67 100 130 134 169 260 268 325 335 338 650 670 676 845 871 1300 1340 1675 1690 1742 3350 3380 3484 4225 4355 4489 6700 8450 8710 8978 11323 16900 17420 17956 21775 22445 22646 43550 44890 45292 56615 58357 87100 89780 112225 113230 116714 224450 226460 233428 283075 291785 448900 566150 583570 758641 1132300 1167140 1458925 1517282 2917850 3034564 3793205 5835700 7586410 15172820 18966025 37932050 75864100