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190382638157 = 1275632662657
BaseRepresentation
bin1011000101001110110…
…0001000010001001101
3200012102002112002020122
42301103230020101031
511104400423410112
6223243252354325
716516600503125
oct2612354102115
9605362462218
10190382638157
1173817043978
1230a929159a5
1314c509a491a
149300ac3c85
154e43e9a872
hex2c53b0844d

190382638157 has 8 divisors (see below), whose sum is σ = 192222606336. Its totient is φ = 188547996672.

The previous prime is 190382638129. The next prime is 190382638177. The reversal of 190382638157 is 751836283091.

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 190382638157 - 218 = 190382376013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190382638099 and 190382638108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190382638177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1259828 + ... + 1402829.

It is an arithmetic number, because the mean of its divisors is an integer number (24027825792).

Almost surely, 2190382638157 is an apocalyptic number.

It is an amenable number.

190382638157 is a deficient number, since it is larger than the sum of its proper divisors (1839968179).

190382638157 is a wasteful number, since it uses less digits than its factorization.

190382638157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663347.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 190382638157 in words is "one hundred ninety billion, three hundred eighty-two million, six hundred thirty-eight thousand, one hundred fifty-seven".

Divisors: 1 127 563 71501 2662657 338157439 1499075891 190382638157