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253050530 = 2525305053
BaseRepresentation
bin11110001010100…
…11111010100010
3122122011022001212
433011103322202
51004240104110
641035430122
76161615435
oct1705237242
9578138055
10253050530
1111a927677
12708b5342
1340570055
142587181c
1517337e05
hexf153ea2

253050530 has 8 divisors (see below), whose sum is σ = 455490972. Its totient is φ = 101220208.

The previous prime is 253050529. The next prime is 253050541. The reversal of 253050530 is 35050352.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 232593001 + 20457529 = 15251^2 + 4523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 253050496 and 253050505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12652517 + ... + 12652536.

Almost surely, 2253050530 is an apocalyptic number.

253050530 is a deficient number, since it is larger than the sum of its proper divisors (202440442).

253050530 is a wasteful number, since it uses less digits than its factorization.

253050530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25305060.

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 253050530 is about 15907.5620382257. The cubic root of 253050530 is about 632.5124578985.

The spelling of 253050530 in words is "two hundred fifty-three million, fifty thousand, five hundred thirty".

Divisors: 1 2 5 10 25305053 50610106 126525265 253050530