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380387678790 = 235723295035399
BaseRepresentation
bin1011000100100001101…
…11110101101001000110
31100100211212112020001210
411202100313311221012
522213013221210130
6450425300032250
736324234630660
oct5422067655106
91310755466053
10380387678790
11137359a23179
126187b092686
1329b4137ca52
14145a7595530
159d64c0a5b0
hex5890df5a46

380387678790 has 256 divisors, whose sum is σ = 1128701952000. Its totient is φ = 80123248128.

The previous prime is 380387678731. The next prime is 380387678791. The reversal of 380387678790 is 97876783083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380387678791) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 70452511 + ... + 70457909.

It is an arithmetic number, because the mean of its divisors is an integer number (4408992000).

Almost surely, 2380387678790 is an apocalyptic number.

380387678790 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 380387678790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564350976000).

380387678790 is an abundant number, since it is smaller than the sum of its proper divisors (748314273210).

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

380387678790 is a wasteful number, since it uses less digits than its factorization.

380387678790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5971.

The product of its (nonzero) digits is 85349376, while the sum is 66.

The spelling of 380387678790 in words is "three hundred eighty billion, three hundred eighty-seven million, six hundred seventy-eight thousand, seven hundred ninety".