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19399029629 = 74237965393
BaseRepresentation
bin10010000100010001…
…011011001101111101
31212001221200210212212
4102010101123031331
5304212122422004
612524540310205
71254504013460
oct220421331575
955057623785
1019399029629
1182552790a1
123914842365
131aa202c475
14d205692d7
1578810a96e
hex48445b37d

19399029629 has 8 divisors (see below), whose sum is σ = 22171181760. Its totient is φ = 16627093056.

The previous prime is 19399029547. The next prime is 19399029691. The reversal of 19399029629 is 92692099391.

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

It is not a de Polignac number, because 19399029629 - 232 = 15104062333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19399029029) 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, 263957 + ... + 329349.

It is an arithmetic number, because the mean of its divisors is an integer number (2771397720).

Almost surely, 219399029629 is an apocalyptic number.

It is an amenable number.

19399029629 is a deficient number, since it is larger than the sum of its proper divisors (2772152131).

19399029629 is an equidigital number, since it uses as much as digits as its factorization.

19399029629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107779.

The product of its (nonzero) digits is 4251528, while the sum is 59.

The spelling of 19399029629 in words is "nineteen billion, three hundred ninety-nine million, twenty-nine thousand, six hundred twenty-nine".

Divisors: 1 7 42379 65393 296653 457751 2771289947 19399029629