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1310042351 = 5992187049
BaseRepresentation
bin100111000010101…
…1010100011101111
310101022002001021002
41032011122203233
510140332323401
6333554430515
744315114312
oct11605324357
93338061232
101310042351
11612537232
1230689243b
1317b542bb7
14c5db6979
157a025a6b
hex4e15a8ef

1310042351 has 4 divisors (see below), whose sum is σ = 1312230000. Its totient is φ = 1307854704.

The previous prime is 1310042341. The next prime is 1310042359. The reversal of 1310042351 is 1532400131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1532400131 = 8917217979.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1310042351 is a prime.

It is a super-2 number, since 2×13100423512 = 3432421922827214402, 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 (1310042359) 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, 1092926 + ... + 1094123.

It is an arithmetic number, because the mean of its divisors is an integer number (328057500).

Almost surely, 21310042351 is an apocalyptic number.

1310042351 is a deficient number, since it is larger than the sum of its proper divisors (2187649).

1310042351 is an equidigital number, since it uses as much as digits as its factorization.

1310042351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187648.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1310042351 is about 36194.5071937718. The cubic root of 1310042351 is about 1094.1959725327.

Adding to 1310042351 its reverse (1532400131), we get a palindrome (2842442482).

The spelling of 1310042351 in words is "one billion, three hundred ten million, forty-two thousand, three hundred fifty-one".

Divisors: 1 599 2187049 1310042351