Search a number
-
+
396390052962 = 23231247872
BaseRepresentation
bin1011100010010101011…
…00000011010001100010
31101220011002211001121200
411301022230003101202
522443301323143322
6502033222302030
740431625600041
oct5611254032142
91356132731550
10396390052962
1114312093a7a2
12649a6287916
132b4c17877c7
1415284984558
15a49ea1e8ac
hex5c4ab03462

396390052962 has 54 divisors (see below), whose sum is σ = 887628920139. Its totient is φ = 127841047560.

The previous prime is 396390052957. The next prime is 396390052969. The reversal of 396390052962 is 269250093693.

It can be written as a sum of positive squares in only one way, i.e., 198195026481 + 198195026481 = 445191^2 + 445191^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=445191.

It is a junction number, because it is equal to n+sod(n) for n = 396390052899 and 396390052908.

It is not an unprimeable number, because it can be changed into a prime (396390052969) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 82803133 + ... + 82807919.

Almost surely, 2396390052962 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396390052962

396390052962 is an abundant number, since it is smaller than the sum of its proper divisors (491238867177).

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

396390052962 is an frugal number, since it uses more digits than its factorization.

396390052962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9644 (or 4823 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 54.

The spelling of 396390052962 in words is "three hundred ninety-six billion, three hundred ninety million, fifty-two thousand, nine hundred sixty-two".

Divisors: 1 2 3 6 9 18 31 62 93 186 279 558 961 1922 2883 4787 5766 8649 9574 14361 17298 28722 43083 86166 148397 296794 445191 890382 1335573 2671146 4600307 9200614 13800921 22915369 27601842 41402763 45830738 68746107 82805526 137492214 206238321 412476642 710376439 1420752878 2131129317 4262258634 6393387951 12786775902 22021669609 44043339218 66065008827 132130017654 198195026481 396390052962