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75868250 = 253303473
BaseRepresentation
bin1001000010110…
…10100001011010
312021202111200012
410201122201122
5123410241000
611310041522
71610604143
oct441324132
9167674605
1075868250
1139909a37
12214a92a2
1312944873
14a10caca
1569d9735
hex485a85a

75868250 has 16 divisors (see below), whose sum is σ = 142025832. Its totient is φ = 30347200.

The previous prime is 75868249. The next prime is 75868291. The reversal of 75868250 is 5286857.

It can be written as a sum of positive squares in 4 ways, for example, as 31685641 + 44182609 = 5629^2 + 6647^2 .

It is a junction number, because it is equal to n+sod(n) for n = 75868198 and 75868207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151487 + ... + 151986.

Almost surely, 275868250 is an apocalyptic number.

75868250 is a deficient number, since it is larger than the sum of its proper divisors (66157582).

75868250 is a wasteful number, since it uses less digits than its factorization.

75868250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303490 (or 303480 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 75868250 is about 8710.2382286594. The cubic root of 75868250 is about 423.3374494127.

The spelling of 75868250 in words is "seventy-five million, eight hundred sixty-eight thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 303473 606946 1517365 3034730 7586825 15173650 37934125 75868250