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1064631013 = 71109137567
BaseRepresentation
bin111111011101001…
…111101011100101
32202012021212012021
4333131033223211
54140021143023
6253350423141
735245133335
oct7735175345
92665255167
101064631013
114a6a58046
12258661ab1
1313c748ca4
14a15730c5
15636eb35d
hex3f74fae5

1064631013 has 8 divisors (see below), whose sum is σ = 1089538560. Its totient is φ = 1039998960.

The previous prime is 1064630999. The next prime is 1064631019. The reversal of 1064631013 is 3101364601.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1064631013 - 225 = 1031076581 is a prime.

It is a super-2 number, since 2×10646310132 = 2266878387682812338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064631019) 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, 61045 + ... + 76522.

It is an arithmetic number, because the mean of its divisors is an integer number (136192320).

Almost surely, 21064631013 is an apocalyptic number.

It is an amenable number.

1064631013 is a deficient number, since it is larger than the sum of its proper divisors (24907547).

1064631013 is a wasteful number, since it uses less digits than its factorization.

1064631013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137747.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1064631013 is about 32628.6838992933. The cubic root of 1064631013 is about 1021.0955206903.

Adding to 1064631013 its reverse (3101364601), we get a palindrome (4165995614).

The spelling of 1064631013 in words is "one billion, sixty-four million, six hundred thirty-one thousand, thirteen".

Divisors: 1 71 109 7739 137567 9767257 14994803 1064631013