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3934223197 = 21023187139
BaseRepresentation
bin1110101001111111…
…0111101101011101
3101011011221020122021
43222133313231131
531024130120242
61450220020141
7166331226322
oct35237675535
911134836567
103934223197
111739848133
12919691651
134a9101228
14294710b49
151805d0b67
hexea7f7b5d

3934223197 has 4 divisors (see below), whose sum is σ = 3934431360. Its totient is φ = 3934015036.

The previous prime is 3934223173. The next prime is 3934223207. The reversal of 3934223197 is 7913224393.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3934223197 is a prime.

It is a super-2 number, since 2×39342231972 = 30956224327625801618, 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 (3934223107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72547 + ... + 114592.

It is an arithmetic number, because the mean of its divisors is an integer number (983607840).

Almost surely, 23934223197 is an apocalyptic number.

It is an amenable number.

3934223197 is a deficient number, since it is larger than the sum of its proper divisors (208163).

3934223197 is a wasteful number, since it uses less digits than its factorization.

3934223197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208162.

The product of its digits is 244944, while the sum is 43.

The square root of 3934223197 is about 62723.3863642581. The cubic root of 3934223197 is about 1578.6517362344.

The spelling of 3934223197 in words is "three billion, nine hundred thirty-four million, two hundred twenty-three thousand, one hundred ninety-seven".

Divisors: 1 21023 187139 3934223197