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380821503807 = 345407869521
BaseRepresentation
bin1011000101010101011…
…10101111111100111111
31100101222002211211010000
411202222232233330333
522214410301110212
6450540314245343
736341053241643
oct5425256577477
91311862754100
10380821503807
111375618a1348
1261980426853
1329bb0205344
1414609042c23
159d8cd511dc
hex58aabaff3f

380821503807 has 20 divisors (see below), whose sum is σ = 568987372096. Its totient is φ = 253833756480.

The previous prime is 380821503791. The next prime is 380821503841. The reversal of 380821503807 is 708305128083.

It is not a de Polignac number, because 380821503807 - 24 = 380821503791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380821503857) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3207 + ... + 872727.

Almost surely, 2380821503807 is an apocalyptic number.

380821503807 is a deficient number, since it is larger than the sum of its proper divisors (188165868289).

380821503807 is an equidigital number, since it uses as much as digits as its factorization.

380821503807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874940 (or 874931 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 380821503807 in words is "three hundred eighty billion, eight hundred twenty-one million, five hundred three thousand, eight hundred seven".

Divisors: 1 3 9 27 81 5407 16221 48663 145989 437967 869521 2608563 7825689 23477067 70431201 4701500047 14104500141 42313500423 126940501269 380821503807