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10012020078 = 231668670013
BaseRepresentation
bin10010101001100001…
…10100110101101110
3221211202101022120110
421110300310311232
5131001034120303
64333252200450
7503051523624
oct112460646556
927752338513
1010012020078
114278584965
121b35009126
13c37338648
146ad9b1514
153d8e84703
hex254c34d6e

10012020078 has 8 divisors (see below), whose sum is σ = 20024040168. Its totient is φ = 3337340024.

The previous prime is 10012020077. The next prime is 10012020079. The reversal of 10012020078 is 87002021001.

10012020078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10012020077) and next prime (10012020079).

It is a sphenic number, since it is the product of 3 distinct primes.

10012020078 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012020077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834335001 + ... + 834335012.

It is an arithmetic number, because the mean of its divisors is an integer number (2503005021).

Almost surely, 210012020078 is an apocalyptic number.

10012020078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10012020078 is a wasteful number, since it uses less digits than its factorization.

10012020078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668670018.

The product of its (nonzero) digits is 224, while the sum is 21.

Adding to 10012020078 its reverse (87002021001), we get a palindrome (97014041079).

The spelling of 10012020078 in words is "ten billion, twelve million, twenty thousand, seventy-eight".

Divisors: 1 2 3 6 1668670013 3337340026 5006010039 10012020078