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253404335 = 5103149157
BaseRepresentation
bin11110001101010…
…10010010101111
3122122211021101202
433012222102233
51004332414320
641051200115
76164621102
oct1706522257
9578737352
10253404335
11120049478
1270a4603b
13406650c2
1425924739
15173a7b75
hexf1aa4af

253404335 has 8 divisors (see below), whose sum is σ = 304386336. Its totient is φ = 202522720.

The previous prime is 253404287. The next prime is 253404337. The reversal of 253404335 is 533404352.

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

It is not a de Polignac number, because 253404335 - 28 = 253404079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253404298 and 253404307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253404337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19424 + ... + 29733.

It is an arithmetic number, because the mean of its divisors is an integer number (38048292).

Almost surely, 2253404335 is an apocalyptic number.

253404335 is a deficient number, since it is larger than the sum of its proper divisors (50982001).

253404335 is a wasteful number, since it uses less digits than its factorization.

253404335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50193.

The product of its (nonzero) digits is 21600, while the sum is 29.

The square root of 253404335 is about 15918.6788082428. The cubic root of 253404335 is about 632.8071050518.

Adding to 253404335 its reverse (533404352), we get a palindrome (786808687).

The spelling of 253404335 in words is "two hundred fifty-three million, four hundred four thousand, three hundred thirty-five".

Divisors: 1 5 1031 5155 49157 245785 50680867 253404335