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1361247929 = 4178742187
BaseRepresentation
bin101000100100010…
…1111111010111001
310111212102120002222
41101020233322321
510241434413204
6343024133425
745506262566
oct12110577271
93455376088
101361247929
11639430798
1231ba67275
13189030c62
14ccb0586d
157e78cabe
hex5122feb9

1361247929 has 8 divisors (see below), whose sum is σ = 1396254048. Its totient is φ = 1326327840.

The previous prime is 1361247889. The next prime is 1361247971. The reversal of 1361247929 is 9297421631.

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 1361247929 - 28 = 1361247673 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 1361247929.

It is not an unprimeable number, because it can be changed into a prime (1361247529) 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 7 ways as a sum of consecutive naturals, for example, 11174 + ... + 53360.

It is an arithmetic number, because the mean of its divisors is an integer number (174531756).

Almost surely, 21361247929 is an apocalyptic number.

It is an amenable number.

1361247929 is a deficient number, since it is larger than the sum of its proper divisors (35006119).

1361247929 is an equidigital number, since it uses as much as digits as its factorization.

1361247929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43015.

The product of its digits is 163296, while the sum is 44.

The square root of 1361247929 is about 36895.0935626948. The cubic root of 1361247929 is about 1108.2704252132.

The spelling of 1361247929 in words is "one billion, three hundred sixty-one million, two hundred forty-seven thousand, nine hundred twenty-nine".

Divisors: 1 41 787 32267 42187 1729667 33201169 1361247929