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1000013461 = 4323256127
BaseRepresentation
bin111011100110101…
…111111010010101
32120200200221120121
4323212233322111
54022000412321
6243121431541
733531655066
oct7346577225
92520627517
101000013461
11473532a07
1223aa9b5b1
1312c243355
1496b5256d
155cbd5441
hex3b9afe95

1000013461 has 4 divisors (see below), whose sum is σ = 1023269632. Its totient is φ = 976757292.

The previous prime is 1000013447. The next prime is 1000013477. The reversal of 1000013461 is 1643100001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1643100001 = 2879570719.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1000013461 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 (1000013561) 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, 11628021 + ... + 11628106.

It is an arithmetic number, because the mean of its divisors is an integer number (255817408).

Almost surely, 21000013461 is an apocalyptic number.

It is an amenable number.

1000013461 is a deficient number, since it is larger than the sum of its proper divisors (23256171).

1000013461 is an equidigital number, since it uses as much as digits as its factorization.

1000013461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23256170.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1000013461 is about 31622.9894380655. The cubic root of 1000013461 is about 1000.0044869799.

Adding to 1000013461 its reverse (1643100001), we get a palindrome (2643113462).

The spelling of 1000013461 in words is "one billion, thirteen thousand, four hundred sixty-one".

Divisors: 1 43 23256127 1000013461