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252803028 = 223236731361
BaseRepresentation
bin11110001000101…
…11011111010100
3122121200201120010
433010113133110
51004204144103
641030240220
76156535032
oct1704273724
9577621503
10252803028
1111a778725
12707b6070
13404b44ba
1425809552
15172d9903
hexf1177d4

252803028 has 48 divisors (see below), whose sum is σ = 616887936. Its totient is φ = 80424960.

The previous prime is 252803027. The next prime is 252803029. The reversal of 252803028 is 820308252.

252803028 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (252803027) and next prime (252803029).

It is a junction number, because it is equal to n+sod(n) for n = 252802986 and 252803004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252803027) 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, 185068 + ... + 186428.

It is an arithmetic number, because the mean of its divisors is an integer number (12851832).

Almost surely, 2252803028 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 252803028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308443968).

252803028 is an abundant number, since it is smaller than the sum of its proper divisors (364084908).

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

252803028 is a wasteful number, since it uses less digits than its factorization.

252803028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064 (or 2062 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 252803028 is about 15899.7807532054. The cubic root of 252803028 is about 632.3061760878.

The spelling of 252803028 in words is "two hundred fifty-two million, eight hundred three thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 673 1346 1361 2019 2692 2722 4038 4083 5444 8076 8166 15479 16332 30958 31303 46437 61916 62606 92874 93909 125212 185748 187818 375636 915953 1831906 2747859 3663812 5495718 10991436 21066919 42133838 63200757 84267676 126401514 252803028