Search a number
-
+
20250153444 = 22313112881777
BaseRepresentation
bin10010110111000000…
…001101000111100100
31221021021020101021010
4102313000031013210
5312433014402234
613145223022220
71314550315143
oct226700150744
957237211233
1020250153444
118651758004
123b1189a970
131ba9472121
14da160175a
157d7bd06e9
hex4b700d1e4

20250153444 has 24 divisors (see below), whose sum is σ = 47611051488. Its totient is φ = 6698523520.

The previous prime is 20250153397. The next prime is 20250153457. The reversal of 20250153444 is 44435105202.

It is a super-2 number, since 2×202501534442 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6439317 + ... + 6442460.

It is an arithmetic number, because the mean of its divisors is an integer number (1983793812).

Almost surely, 220250153444 is an apocalyptic number.

It is an amenable number.

20250153444 is an abundant number, since it is smaller than the sum of its proper divisors (27360898044).

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

20250153444 is a wasteful number, since it uses less digits than its factorization.

20250153444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12881915 (or 12881913 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 20250153444 its reverse (44435105202), we get a palindrome (64685258646).

The spelling of 20250153444 in words is "twenty billion, two hundred fifty million, one hundred fifty-three thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 131 262 393 524 786 1572 12881777 25763554 38645331 51527108 77290662 154581324 1687512787 3375025574 5062538361 6750051148 10125076722 20250153444