Search a number
-
+
68420714072 = 23291021288851
BaseRepresentation
bin111111101110001100…
…010011111001011000
320112121100122101212012
4333232030103321120
52110111200322242
651233153205052
74641346321334
oct775614237130
9215540571765
1068420714072
1127020789197
1211315b60788
1365b51b5039
143450d947c4
151ba6b54282
hexfee313e58

68420714072 has 32 divisors (see below), whose sum is σ = 132843034800. Its totient is φ = 32998224000.

The previous prime is 68420714069. The next prime is 68420714083. The reversal of 68420714072 is 27041702486.

It is a happy number.

It is a super-2 number, since 2×684207140722 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92447 + ... + 381297.

Almost surely, 268420714072 is an apocalyptic number.

It is an amenable number.

68420714072 is a deficient number, since it is larger than the sum of its proper divisors (64422320728).

68420714072 is a wasteful number, since it uses less digits than its factorization.

68420714072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289907 (or 289903 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The spelling of 68420714072 in words is "sixty-eight billion, four hundred twenty million, seven hundred fourteen thousand, seventy-two".

Divisors: 1 2 4 8 29 58 116 232 1021 2042 4084 8168 29609 59218 118436 236872 288851 577702 1155404 2310808 8376679 16753358 33506716 67013432 294916871 589833742 1179667484 2359334968 8552589259 17105178518 34210357036 68420714072