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78213700724412 = 22311592528035791
BaseRepresentation
bin10001110010001010001011…
…110110010010011010111100
3101020221011020021121202210210
4101302022023312102122330
540222423124341140122
6434202513355432420
722321516262603241
oct2162121366223274
9336834207552723
1078213700724412
1122a152760395a0
12893240a155710
13348469c222a46
1415457c5a375c8
159097b7ae940c
hex47228bd926bc

78213700724412 has 24 divisors (see below), whose sum is σ = 199089420026112. Its totient is φ = 23701121431600.

The previous prime is 78213700724407. The next prime is 78213700724447. The reversal of 78213700724412 is 21442700731287.

78213700724412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×782137007244122 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296264017764 + ... + 296264018027.

It is an arithmetic number, because the mean of its divisors is an integer number (8295392501088).

Almost surely, 278213700724412 is an apocalyptic number.

It is an amenable number.

78213700724412 is an abundant number, since it is smaller than the sum of its proper divisors (120875719301700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78213700724412 is a wasteful number, since it uses less digits than its factorization.

78213700724412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592528035809 (or 592528035807 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 48.

The spelling of 78213700724412 in words is "seventy-eight trillion, two hundred thirteen billion, seven hundred million, seven hundred twenty-four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 592528035791 1185056071582 1777584107373 2370112143164 3555168214746 6517808393701 7110336429492 13035616787402 19553425181103 26071233574804 39106850362206 78213700724412