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1013101405 = 5202620281
BaseRepresentation
bin111100011000101…
…011001101011101
32121121022212212021
4330120223031131
54033323221110
6244310140141
734051135261
oct7430531535
92547285767
101013101405
1147a962098
12243351651
13131b765b4
149879c0a1
155de1d2da
hex3c62b35d

1013101405 has 4 divisors (see below), whose sum is σ = 1215721692. Its totient is φ = 810481120.

The previous prime is 1013101393. The next prime is 1013101409. The reversal of 1013101405 is 5041013101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 767677849 + 245423556 = 27707^2 + 15666^2 .

It is not a de Polignac number, because 1013101405 - 27 = 1013101277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013101409) 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, 101310136 + ... + 101310145.

It is an arithmetic number, because the mean of its divisors is an integer number (303930423).

Almost surely, 21013101405 is an apocalyptic number.

It is an amenable number.

1013101405 is a deficient number, since it is larger than the sum of its proper divisors (202620287).

1013101405 is an equidigital number, since it uses as much as digits as its factorization.

1013101405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202620286.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1013101405 is about 31829.2539183689. The cubic root of 1013101405 is about 1004.3482007467.

Adding to 1013101405 its reverse (5041013101), we get a palindrome (6054114506).

The spelling of 1013101405 in words is "one billion, thirteen million, one hundred one thousand, four hundred five".

Divisors: 1 5 202620281 1013101405