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68771427430 = 2520963328061
BaseRepresentation
bin100000000001100011…
…0001011010001100110
320120111210120111010211
41000003012023101212
52111320441134210
651332042210034
74653135326266
oct1000306132146
9216453514124
1068771427430
1127190750342
12113b34b391a
13663ca5ab34
1434857a97a6
151bc782e38a
hex100318b466

68771427430 has 16 divisors (see below), whose sum is σ = 123794851824. Its totient is φ = 27507174880.

The previous prime is 68771427397. The next prime is 68771427463. The reversal of 68771427430 is 3472417786.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68771427397) and next prime (68771427463).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45600 + ... + 373660.

It is an arithmetic number, because the mean of its divisors is an integer number (7737178239).

Almost surely, 268771427430 is an apocalyptic number.

68771427430 is a deficient number, since it is larger than the sum of its proper divisors (55023424394).

68771427430 is a wasteful number, since it uses less digits than its factorization.

68771427430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349031.

The product of its (nonzero) digits is 1580544, while the sum is 49.

The spelling of 68771427430 in words is "sixty-eight billion, seven hundred seventy-one million, four hundred twenty-seven thousand, four hundred thirty".

Divisors: 1 2 5 10 20963 41926 104815 209630 328061 656122 1640305 3280610 6877142743 13754285486 34385713715 68771427430