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202425808 = 24137997127
BaseRepresentation
bin11000001000011…
…00010111010000
3112002220022000011
430010030113100
5403310111213
632030404304
75005406464
oct1404142720
9462808004
10202425808
11a429a562
1257960694
1332c264b0
141cc544a4
1512b8803d
hexc10c5d0

202425808 has 80 divisors (see below), whose sum is σ = 435527680. Its totient is φ = 90574848.

The previous prime is 202425799. The next prime is 202425809. The reversal of 202425808 is 808524202.

It is a self number, because there is not a number n which added to its sum of digits gives 202425808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202425809) 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, 1593841 + ... + 1593967.

It is an arithmetic number, because the mean of its divisors is an integer number (5444096).

Almost surely, 2202425808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202425808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217763840).

202425808 is an abundant number, since it is smaller than the sum of its proper divisors (233101872).

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

202425808 is a wasteful number, since it uses less digits than its factorization.

202425808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 202425808 is about 14227.6423907828. The cubic root of 202425808 is about 587.1584209064.

The spelling of 202425808 in words is "two hundred two million, four hundred twenty-five thousand, eight hundred eight".

Divisors: 1 2 4 8 13 16 26 52 79 97 104 127 158 194 208 254 316 388 508 632 776 1016 1027 1261 1264 1552 1651 2032 2054 2522 3302 4108 5044 6604 7663 8216 10033 10088 12319 13208 15326 16432 20066 20176 24638 26416 30652 40132 49276 61304 80264 98552 99619 122608 130429 160147 160528 197104 199238 260858 320294 398476 521716 640588 796952 973201 1043432 1281176 1593904 1946402 2086864 2562352 3892804 7785608 12651613 15571216 25303226 50606452 101212904 202425808