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380725488640 = 2105783131977
BaseRepresentation
bin1011000101001010000…
…00011110110000000000
31100101201102011202001201
411202211000132300000
522214211211114030
6450523004310544
736335506154230
oct5424500366000
91311642152051
10380725488640
11137512681772
1261954242454
1329b96358533
14145da3abcc0
159d846d72ca
hex58a501ec00

380725488640 has 352 divisors, whose sum is σ = 1065494352384. Its totient is φ = 127846318080.

The previous prime is 380725488629. The next prime is 380725488653. The reversal of 380725488640 is 46884527083.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389687832 + ... + 389688808.

It is an arithmetic number, because the mean of its divisors is an integer number (3026972592).

Almost surely, 2380725488640 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 380725488640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (532747176192).

380725488640 is an abundant number, since it is smaller than the sum of its proper divisors (684768863744).

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

380725488640 is a wasteful number, since it uses less digits than its factorization.

380725488640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 380725488640 in words is "three hundred eighty billion, seven hundred twenty-five million, four hundred eighty-eight thousand, six hundred forty".