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68727021370 = 2574217232823
BaseRepresentation
bin100000000000001110…
…0110001111100111010
320120101201000102110221
41000000130301330322
52111223104140440
651323414330254
74652056020460
oct1000034617472
9216351012427
1068727021370
1127168680417
12113a065998a
1366337b0967
14347d92a830
151bc39abd4a
hex1000731f3a

68727021370 has 32 divisors (see below), whose sum is σ = 141415435008. Its totient is φ = 23557861248.

The previous prime is 68727021317. The next prime is 68727021379. The reversal of 68727021370 is 7312072786.

It is not an unprimeable number, because it can be changed into a prime (68727021379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178779 + ... + 411601.

It is an arithmetic number, because the mean of its divisors is an integer number (4419232344).

Almost surely, 268727021370 is an apocalyptic number.

68727021370 is an abundant number, since it is smaller than the sum of its proper divisors (72688413638).

68727021370 is a wasteful number, since it uses less digits than its factorization.

68727021370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237054.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 68727021370 in words is "sixty-eight billion, seven hundred twenty-seven million, twenty-one thousand, three hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 4217 8434 21085 29519 42170 59038 147595 232823 295190 465646 1164115 1629761 2328230 3259522 8148805 16297610 981814591 1963629182 4909072955 6872702137 9818145910 13745404274 34363510685 68727021370