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502045420 = 225831671811
BaseRepresentation
bin11101111011001…
…001101011101100
31021222200112211211
4131323021223230
52012010423140
6121452324204
715304213162
oct3573115354
91258615754
10502045420
11238434178
12120173664
13800200c6
144a969232
152e11e2ea
hex1dec9aec

502045420 has 48 divisors (see below), whose sum is σ = 1073979648. Its totient is φ = 197101760.

The previous prime is 502045393. The next prime is 502045429. The reversal of 502045420 is 24540205.

It is a junction number, because it is equal to n+sod(n) for n = 502045391 and 502045400.

It is not an unprimeable number, because it can be changed into a prime (502045429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276315 + ... + 278125.

It is an arithmetic number, because the mean of its divisors is an integer number (22374576).

Almost surely, 2502045420 is an apocalyptic number.

It is an amenable number.

502045420 is an abundant number, since it is smaller than the sum of its proper divisors (571934228).

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

502045420 is a wasteful number, since it uses less digits than its factorization.

502045420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2068 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 502045420 is about 22406.3700763868. The cubic root of 502045420 is about 794.7813541095.

Adding to 502045420 its reverse (24540205), we get a palindrome (526585625).

The spelling of 502045420 in words is "five hundred two million, forty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 83 166 167 332 334 415 668 830 835 1660 1670 1811 3340 3622 7244 9055 13861 18110 27722 36220 55444 69305 138610 150313 277220 300626 302437 601252 604874 751565 1209748 1503130 1512185 3006260 3024370 6048740 25102271 50204542 100409084 125511355 251022710 502045420