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395061728372 = 22509194038177
BaseRepresentation
bin1011011111110111000…
…00111001010001110100
31101202201112100011211122
411233323200321101310
522433041300301442
6501253331523112
740353666166433
oct5577340712164
91352645304748
10395061728372
111425aa056883
1264695459498
132b33c51331c
141519a3ad11a
15a4230d6dd2
hex5bfb839474

395061728372 has 12 divisors (see below), whose sum is σ = 692716295460. Its totient is φ = 197142786816.

The previous prime is 395061728371. The next prime is 395061728461. The reversal of 395061728372 is 273827160593.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 322526311396 + 72535416976 = 567914^2 + 269324^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395061728371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97017053 + ... + 97021124.

It is an arithmetic number, because the mean of its divisors is an integer number (57726357955).

Almost surely, 2395061728372 is an apocalyptic number.

It is an amenable number.

395061728372 is a deficient number, since it is larger than the sum of its proper divisors (297654567088).

395061728372 is a wasteful number, since it uses less digits than its factorization.

395061728372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194038690 (or 194038688 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 395061728372 in words is "three hundred ninety-five billion, sixty-one million, seven hundred twenty-eight thousand, three hundred seventy-two".

Divisors: 1 2 4 509 1018 2036 194038177 388076354 776152708 98765432093 197530864186 395061728372