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252803030 = 25235110753
BaseRepresentation
bin11110001000101…
…11011111010110
3122121200201120012
433010113133112
51004204144110
641030240222
76156535034
oct1704273726
9577621505
10252803030
1111a778727
12707b6072
13404b44bc
1425809554
15172d9905
hexf1177d6

252803030 has 16 divisors (see below), whose sum is σ = 455281344. Its totient is φ = 101068800.

The previous prime is 252803029. The next prime is 252803059. The reversal of 252803030 is 30308252.

It is a junction number, because it is equal to n+sod(n) for n = 252802987 and 252803005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18134 + ... + 28886.

It is an arithmetic number, because the mean of its divisors is an integer number (28455084).

Almost surely, 2252803030 is an apocalyptic number.

252803030 is a deficient number, since it is larger than the sum of its proper divisors (202478314).

252803030 is a wasteful number, since it uses less digits than its factorization.

252803030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13111.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 252803030 is about 15899.7808160993. The cubic root of 252803030 is about 632.3061777552.

The spelling of 252803030 in words is "two hundred fifty-two million, eight hundred three thousand, thirty".

Divisors: 1 2 5 10 2351 4702 10753 11755 21506 23510 53765 107530 25280303 50560606 126401515 252803030