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1210340013 = 33131288967
BaseRepresentation
bin100100000100100…
…0101001010101101
310010100110122100220
41020021011022231
54434321340023
6320033441553
741664502041
oct11011051255
93110418326
101210340013
11571229403
122994102b9
131639a4a2c
14b6a62021
15713ce3e3
hex482452ad

1210340013 has 8 divisors (see below), whose sum is σ = 1618943808. Its totient is φ = 804314784.

The previous prime is 1210340009. The next prime is 1210340029. The reversal of 1210340013 is 3100430121.

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

It is not a de Polignac number, because 1210340013 - 22 = 1210340009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210339974 and 1210340001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210340083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 643545 + ... + 645422.

It is an arithmetic number, because the mean of its divisors is an integer number (202367976).

Almost surely, 21210340013 is an apocalyptic number.

It is an amenable number.

1210340013 is a deficient number, since it is larger than the sum of its proper divisors (408603795).

1210340013 is a wasteful number, since it uses less digits than its factorization.

1210340013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289283.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1210340013 is about 34789.9412618073. The cubic root of 1210340013 is about 1065.7020397091.

Adding to 1210340013 its reverse (3100430121), we get a palindrome (4310770134).

The spelling of 1210340013 in words is "one billion, two hundred ten million, three hundred forty thousand, thirteen".

Divisors: 1 3 313 939 1288967 3866901 403446671 1210340013