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3872388388370 = 251819972127721
BaseRepresentation
bin111000010110011100010…
…101011001011000010010
3111201012022101221011012212
4320112130111121120102
51001421122411411440
612122541202152122
7546525252131135
oct70263425313022
914635271834185
103872388388370
1112632a8324027
125265b3052642
1322121a9a5578
14d55d315021c
156aae2b77465
hex3859c559612

3872388388370 has 16 divisors (see below), whose sum is σ = 6970340674008. Its totient is φ = 1548946116480.

The previous prime is 3872388388333. The next prime is 3872388388409. The reversal of 3872388388370 is 738838832783.

It can be written as a sum of positive squares in 4 ways, for example, as 2385044720881 + 1487343667489 = 1544359^2 + 1219567^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3872388388370.

It is an unprimeable number.

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, 756110 + ... + 2883830.

Almost surely, 23872388388370 is an apocalyptic number.

3872388388370 is a deficient number, since it is larger than the sum of its proper divisors (3097952285638).

3872388388370 is a wasteful number, since it uses less digits than its factorization.

3872388388370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309725.

The product of its (nonzero) digits is 260112384, while the sum is 68.

The spelling of 3872388388370 in words is "three trillion, eight hundred seventy-two billion, three hundred eighty-eight million, three hundred eighty-eight thousand, three hundred seventy".

Divisors: 1 2 5 10 181997 363994 909985 1819970 2127721 4255442 10638605 21277210 387238838837 774477677674 1936194194185 3872388388370