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1310247407 = 7226739743
BaseRepresentation
bin100111000011000…
…1100100111101111
310101022110110112202
41032012030213233
510140410404112
6334003052115
744316630200
oct11606144757
93338413482
101310247407
116126672a7
1230697103b
1317b5b5331
14c602b5a7
157a0666c2
hex4e18c9ef

1310247407 has 6 divisors (see below), whose sum is σ = 1524165408. Its totient is φ = 1123069164.

The previous prime is 1310247403. The next prime is 1310247413. The reversal of 1310247407 is 7047420131.

It is not a de Polignac number, because 1310247407 - 22 = 1310247403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1310247407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310247403) 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 5 ways as a sum of consecutive naturals, for example, 13369823 + ... + 13369920.

It is an arithmetic number, because the mean of its divisors is an integer number (254027568).

Almost surely, 21310247407 is an apocalyptic number.

1310247407 is a deficient number, since it is larger than the sum of its proper divisors (213918001).

1310247407 is an equidigital number, since it uses as much as digits as its factorization.

1310247407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26739757 (or 26739750 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 1310247407 is about 36197.3397779450. The cubic root of 1310247407 is about 1094.2530596805.

Adding to 1310247407 its reverse (7047420131), we get a palindrome (8357667538).

The spelling of 1310247407 in words is "one billion, three hundred ten million, two hundred forty-seven thousand, four hundred seven".

Divisors: 1 7 49 26739743 187178201 1310247407