Search a number
-
+
10200193444 = 227364292623
BaseRepresentation
bin10010111111111101…
…01001100110100100
3222022212110111220101
421133332221212210
5131342222142234
64404053313444
7510525133210
oct113776514644
928285414811
1010200193444
11436481a341
121b88035884
13c6731182c
146ca995940
153ea754814
hex25ffa99a4

10200193444 has 12 divisors (see below), whose sum is σ = 20400386944. Its totient is φ = 4371511464.

The previous prime is 10200193391. The next prime is 10200193447. The reversal of 10200193444 is 44439100201.

10200193444 is an admirable number.

It is a super-2 number, since 2×102001934442 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 364292623 = 10200193444 / (1 + 0 + 2 + 0 + 0 + 1 + 9 + 3 + 4 + 4 + 4).

It is not an unprimeable number, because it can be changed into a prime (10200193447) 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, 182146284 + ... + 182146339.

Almost surely, 210200193444 is an apocalyptic number.

10200193444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10200193444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10200193444 is a wasteful number, since it uses less digits than its factorization.

10200193444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364292634 (or 364292632 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 10200193444 its reverse (44439100201), we get a palindrome (54639293645).

The spelling of 10200193444 in words is "ten billion, two hundred million, one hundred ninety-three thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 364292623 728585246 1457170492 2550048361 5100096722 10200193444