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1974966113 = 2902168053
BaseRepresentation
bin111010110110111…
…1001011101100001
312002122020200012002
41311231321131201
513021042403423
6523550213345
766640635461
oct16555713541
95078220162
101974966113
119238a92aa
124714b4255
13256220903
1414a41dba1
15b85ba228
hex75b79761

1974966113 has 4 divisors (see below), whose sum is σ = 1975063188. Its totient is φ = 1974869040.

The previous prime is 1974966067. The next prime is 1974966121. The reversal of 1974966113 is 3116694791.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1312830289 + 662135824 = 36233^2 + 25732^2 .

It is a cyclic number.

It is not a de Polignac number, because 1974966113 - 222 = 1970771809 is a prime.

It is a super-2 number, since 2×19749661132 = 7800982294996657538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1974966193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5006 + ... + 63047.

It is an arithmetic number, because the mean of its divisors is an integer number (493765797).

Almost surely, 21974966113 is an apocalyptic number.

It is an amenable number.

1974966113 is a deficient number, since it is larger than the sum of its proper divisors (97075).

1974966113 is an equidigital number, since it uses as much as digits as its factorization.

1974966113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97074.

The product of its digits is 244944, while the sum is 47.

The square root of 1974966113 is about 44440.5908264055. The cubic root of 1974966113 is about 1254.6421762582.

The spelling of 1974966113 in words is "one billion, nine hundred seventy-four million, nine hundred sixty-six thousand, one hundred thirteen".

Divisors: 1 29021 68053 1974966113