Search a number
-
+
20410046380 = 2251020502319
BaseRepresentation
bin10011000000100010…
…001001011110101100
31221200102002210010201
4103000202021132230
5313244432441010
613213134043244
71321531350253
oct230042113654
957612083121
1020410046380
118723a36a29
123b57349524
131c03625c29
14db894379a
157e6c6623a
hex4c08897ac

20410046380 has 12 divisors (see below), whose sum is σ = 42861097440. Its totient is φ = 8164018544.

The previous prime is 20410046341. The next prime is 20410046389. The reversal of 20410046380 is 8364001402.

It is a super-2 number, since 2×204100463802 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20410046389) 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, 510251140 + ... + 510251179.

It is an arithmetic number, because the mean of its divisors is an integer number (3571758120).

Almost surely, 220410046380 is an apocalyptic number.

20410046380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20410046380 is an abundant number, since it is smaller than the sum of its proper divisors (22451051060).

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

20410046380 is a wasteful number, since it uses less digits than its factorization.

20410046380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020502328 (or 1020502326 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 20410046380 its reverse (8364001402), we get a palindrome (28774047782).

The spelling of 20410046380 in words is "twenty billion, four hundred ten million, forty-six thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 1020502319 2041004638 4082009276 5102511595 10205023190 20410046380