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13010023020 = 2235216833717
BaseRepresentation
bin11000001110111010…
…10011001001101100
31020120200122122110110
430013131103021230
5203121031214040
65550545540020
7640254241161
oct140735231154
936520578413
1013010023020
115576900945
122631044610
1312c44a0b97
148b5c18068
15512281980
hex30775326c

13010023020 has 24 divisors (see below), whose sum is σ = 36428064624. Its totient is φ = 3469339456.

The previous prime is 13010022941. The next prime is 13010023027. The reversal of 13010023020 is 2032001031.

It is a happy number.

13010023020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 13010022987 and 13010023005.

It is not an unprimeable number, because it can be changed into a prime (13010023027) 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 7 ways as a sum of consecutive naturals, for example, 108416799 + ... + 108416918.

It is an arithmetic number, because the mean of its divisors is an integer number (1517836026).

Almost surely, 213010023020 is an apocalyptic number.

13010023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13010023020 is an abundant number, since it is smaller than the sum of its proper divisors (23418041604).

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

13010023020 is a wasteful number, since it uses less digits than its factorization.

13010023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216833729 (or 216833727 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 13010023020 its reverse (2032001031), we get a palindrome (15042024051).

The spelling of 13010023020 in words is "thirteen billion, ten million, twenty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 216833717 433667434 650501151 867334868 1084168585 1301002302 2168337170 2602004604 3252505755 4336674340 6505011510 13010023020