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379398299868 = 223571943131521
BaseRepresentation
bin1011000010101011110…
…01101010000011011100
31100021021220211120100000
411201111321222003130
522204001431043433
6450143154134300
736260562224220
oct5412571520334
91307256746300
10379398299868
111369a14a4145
1261643881390
1329a143c1033
1414512010780
159d07e26113
hex5855e6a0dc

379398299868 has 576 divisors, whose sum is σ = 1235994439680. Its totient is φ = 99349286400.

The previous prime is 379398299837. The next prime is 379398299893. The reversal of 379398299868 is 868992893973.

It is a happy number.

379398299868 is a `hidden beast` number, since 379 + 3 + 9 + 82 + 99 + 86 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 728211448 + ... + 728211968.

It is an arithmetic number, because the mean of its divisors is an integer number (2145823680).

Almost surely, 2379398299868 is an apocalyptic number.

379398299868 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 379398299868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (617997219840).

379398299868 is an abundant number, since it is smaller than the sum of its proper divisors (856596139812).

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

379398299868 is a wasteful number, since it uses less digits than its factorization.

379398299868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 726 counting only the distinct ones).

The product of its digits is 2539579392, while the sum is 81.

The spelling of 379398299868 in words is "three hundred seventy-nine billion, three hundred ninety-eight million, two hundred ninety-nine thousand, eight hundred sixty-eight".