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1012300013 = 2934906897
BaseRepresentation
bin111100010101100…
…111100011101101
32121112211011120002
4330111213203231
54033122100023
6244241034045
734041256664
oct7425474355
92545734502
101012300013
1147a464a8a
12243025925
131319558ba
149862dddb
155dd10b28
hex3c5678ed

1012300013 has 4 divisors (see below), whose sum is σ = 1047206940. Its totient is φ = 977393088.

The previous prime is 1012299961. The next prime is 1012300019. The reversal of 1012300013 is 3100032101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3100032101 = 4916313711.

It can be written as a sum of positive squares in 2 ways, for example, as 811851049 + 200448964 = 28493^2 + 14158^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012300013 - 228 = 743864557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012299967 and 1012300003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012300019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17453420 + ... + 17453477.

It is an arithmetic number, because the mean of its divisors is an integer number (261801735).

Almost surely, 21012300013 is an apocalyptic number.

It is an amenable number.

1012300013 is a deficient number, since it is larger than the sum of its proper divisors (34906927).

1012300013 is an equidigital number, since it uses as much as digits as its factorization.

1012300013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34906926.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1012300013 is about 31816.6625056746. The cubic root of 1012300013 is about 1004.0833082330.

Adding to 1012300013 its reverse (3100032101), we get a palindrome (4112332114).

The spelling of 1012300013 in words is "one billion, twelve million, three hundred thousand, thirteen".

Divisors: 1 29 34906897 1012300013