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3870981507 = 31936685633
BaseRepresentation
bin1110011010111010…
…0111110110000011
3100222202221020100110
43212232213312003
530411432402012
61440040322403
7164632541241
oct34656476603
910882836313
103870981507
111707082778
12900473403
13498c8a903
1428a16b791
15179c8c73c
hexe6ba7d83

3870981507 has 8 divisors (see below), whose sum is σ = 5188051984. Its totient is φ = 2567282688.

The previous prime is 3870981467. The next prime is 3870981553. The reversal of 3870981507 is 7051890783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3870981507 - 28 = 3870981251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3870981577) 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 7 ways as a sum of consecutive naturals, for example, 3342238 + ... + 3343395.

It is an arithmetic number, because the mean of its divisors is an integer number (648506498).

Almost surely, 23870981507 is an apocalyptic number.

3870981507 is a deficient number, since it is larger than the sum of its proper divisors (1317070477).

3870981507 is a wasteful number, since it uses less digits than its factorization.

3870981507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6685829.

The product of its (nonzero) digits is 423360, while the sum is 48.

The square root of 3870981507 is about 62217.2123049563. The cubic root of 3870981507 is about 1570.1471871691.

The spelling of 3870981507 in words is "three billion, eight hundred seventy million, nine hundred eighty-one thousand, five hundred seven".

Divisors: 1 3 193 579 6685633 20056899 1290327169 3870981507