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1242363169 = 19913734547
BaseRepresentation
bin100101000001100…
…1111010100100001
310012120201120212201
41022003033110201
510021021110134
6323140053201
742533625025
oct11203172441
93176646781
101242363169
11588310923
122a8094201
1316a507848
14badda385
1574107914
hex4a0cf521

1242363169 has 8 divisors (see below), whose sum is σ = 1249790400. Its totient is φ = 1234948176.

The previous prime is 1242363151. The next prime is 1242363209. The reversal of 1242363169 is 9613632421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1242363169 is a prime.

It is a super-2 number, since 2×12423631692 = 3086932487375445122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242363119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270954 + ... + 275500.

It is an arithmetic number, because the mean of its divisors is an integer number (156223800).

Almost surely, 21242363169 is an apocalyptic number.

It is an amenable number.

1242363169 is a deficient number, since it is larger than the sum of its proper divisors (7427231).

1242363169 is a wasteful number, since it uses less digits than its factorization.

1242363169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119.

The product of its digits is 46656, while the sum is 37.

The square root of 1242363169 is about 35247.1724965280. The cubic root of 1242363169 is about 1075.0191217799.

The spelling of 1242363169 in words is "one billion, two hundred forty-two million, three hundred sixty-three thousand, one hundred sixty-nine".

Divisors: 1 199 1373 4547 273227 904853 6243031 1242363169