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307382139168 = 253131775719139
BaseRepresentation
bin1000111100100010110…
…01110011100100100000
31002101101222201112220220
410132101121303210200
520014004311423133
6353113122003040
731131134034066
oct4362131634440
91071358645826
10307382139168
111093a6227765
124b6a57a6480
1322ca83615b0
1410c3d734036
157ee080e5b3
hex4791673920

307382139168 has 192 divisors, whose sum is σ = 921323652480. Its totient is φ = 88893407232.

The previous prime is 307382139167. The next prime is 307382139193. The reversal of 307382139168 is 861931283703.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 307382139168.

It is not an unprimeable number, because it can be changed into a prime (307382139167) 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 31 ways as a sum of consecutive naturals, for example, 16050943 + ... + 16070081.

It is an arithmetic number, because the mean of its divisors is an integer number (4798560690).

Almost surely, 2307382139168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307382139168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460661826240).

307382139168 is an abundant number, since it is smaller than the sum of its proper divisors (613941513312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

307382139168 is a wasteful number, since it uses less digits than its factorization.

307382139168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19939 (or 19931 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 307382139168 in words is "three hundred seven billion, three hundred eighty-two million, one hundred thirty-nine thousand, one hundred sixty-eight".