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39472185380 = 2251973609269
BaseRepresentation
bin100100110000101110…
…011100000000100100
310202212212212202221212
4210300232130000210
51121314334413010
630044441530552
72565105016445
oct446056340044
9122785782855
1039472185380
1115816024111
1277971a3a58
13395090c114
141ca64552cc
1510604c7505
hex930b9c024

39472185380 has 12 divisors (see below), whose sum is σ = 82891589340. Its totient is φ = 15788874144.

The previous prime is 39472185373. The next prime is 39472185391. The reversal of 39472185380 is 8358127493.

It can be written as a sum of positive squares in 2 ways, for example, as 25398159424 + 14074025956 = 159368^2 + 118634^2 .

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 3 ways as a sum of consecutive naturals, for example, 986804615 + ... + 986804654.

It is an arithmetic number, because the mean of its divisors is an integer number (6907632445).

Almost surely, 239472185380 is an apocalyptic number.

It is an amenable number.

39472185380 is an abundant number, since it is smaller than the sum of its proper divisors (43419403960).

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

39472185380 is a wasteful number, since it uses less digits than its factorization.

39472185380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973609278 (or 1973609276 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 39472185380 in words is "thirty-nine billion, four hundred seventy-two million, one hundred eighty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 1973609269 3947218538 7894437076 9868046345 19736092690 39472185380