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68693250 = 235391591
BaseRepresentation
bin1000001100000…
…10110100000010
311210020222102110
410012002310002
5120041141000
610452200150
71462611603
oct406026402
9153228373
1068693250
113585928a
121b009056
1311301ac2
1491a1daa
15606d850
hex4182d02

68693250 has 32 divisors (see below), whose sum is σ = 171460224. Its totient is φ = 18318000.

The previous prime is 68693239. The next prime is 68693263. The reversal of 68693250 is 5239686.

It is a junction number, because it is equal to n+sod(n) for n = 68693199 and 68693208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45046 + ... + 46545.

It is an arithmetic number, because the mean of its divisors is an integer number (5358132).

Almost surely, 268693250 is an apocalyptic number.

68693250 is an abundant number, since it is smaller than the sum of its proper divisors (102766974).

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

68693250 is a wasteful number, since it uses less digits than its factorization.

68693250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91611 (or 91601 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 68693250 is about 8288.1391156278. The cubic root of 68693250 is about 409.5478855269.

The spelling of 68693250 in words is "sixty-eight million, six hundred ninety-three thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 125 150 250 375 750 91591 183182 274773 457955 549546 915910 1373865 2289775 2747730 4579550 6869325 11448875 13738650 22897750 34346625 68693250