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68818750075 = 524758569149
BaseRepresentation
bin100000000010111101…
…0101100101001111011
320120122002121201121101
41000011322230221323
52111420100000300
651340452352231
74654251503215
oct1000572545173
9216562551541
1068818750075
1127205432569
1211407315677
1366497b96ba
14348bba75b5
151bcba7ab6a
hex1005eaca7b

68818750075 has 12 divisors (see below), whose sum is σ = 87150895200. Its totient is φ = 53883616160.

The previous prime is 68818750069. The next prime is 68818750081. The reversal of 68818750075 is 57005781886.

It is an interprime number because it is at equal distance from previous prime (68818750069) and next prime (68818750081).

It is not a de Polignac number, because 68818750075 - 227 = 68684532347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68818749998 and 68818750025.

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, 29283400 + ... + 29285749.

It is an arithmetic number, because the mean of its divisors is an integer number (7262574600).

Almost surely, 268818750075 is an apocalyptic number.

68818750075 is a deficient number, since it is larger than the sum of its proper divisors (18332145125).

68818750075 is a wasteful number, since it uses less digits than its factorization.

68818750075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58569206 (or 58569201 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 55.

The spelling of 68818750075 in words is "sixty-eight billion, eight hundred eighteen million, seven hundred fifty thousand, seventy-five".

Divisors: 1 5 25 47 235 1175 58569149 292845745 1464228725 2752750003 13763750015 68818750075