Search a number
-
+
68165000 = 235413633
BaseRepresentation
bin1000001000000…
…01110110001000
311202021010210122
410010001312020
5114422240000
610433002412
71455251531
oct404016610
9152233718
1068165000
1135528412
121a9b3408
1311178527
1490a5688
155eb7085
hex4101d88

68165000 has 40 divisors (see below), whose sum is σ = 159722310. Its totient is φ = 27264000.

The previous prime is 68164981. The next prime is 68165017. The reversal of 68165000 is 56186.

It can be written as a sum of positive squares in 5 ways, for example, as 3104644 + 65060356 = 1762^2 + 8066^2 .

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 9 ways as a sum of consecutive naturals, for example, 1817 + ... + 11816.

Almost surely, 268165000 is an apocalyptic number.

It is an amenable number.

68165000 is an abundant number, since it is smaller than the sum of its proper divisors (91557310).

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

68165000 is a wasteful number, since it uses less digits than its factorization.

68165000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13659 (or 13640 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 68165000 is about 8256.2097841564. The cubic root of 68165000 is about 408.4953773996.

The spelling of 68165000 in words is "sixty-eight million, one hundred sixty-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 625 1000 1250 2500 5000 13633 27266 54532 68165 109064 136330 272660 340825 545320 681650 1363300 1704125 2726600 3408250 6816500 8520625 13633000 17041250 34082500 68165000