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253320623 = 3154714939
BaseRepresentation
bin11110001100101…
…01110110101111
3122122200000120022
433012111312233
51004322224443
641045312355
76164122043
oct1706256657
9578600508
10253320623
1111aaa1596
1270a056bb
1340635c7a
1425902023
151738ce68
hexf195daf

253320623 has 8 divisors (see below), whose sum is σ = 261987840. Its totient is φ = 244684440.

The previous prime is 253320601. The next prime is 253320631. The reversal of 253320623 is 326023352.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 253320623 - 216 = 253255087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253320592 and 253320601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253320653) 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, 9488 + ... + 24426.

It is an arithmetic number, because the mean of its divisors is an integer number (32748480).

Almost surely, 2253320623 is an apocalyptic number.

253320623 is a deficient number, since it is larger than the sum of its proper divisors (8667217).

253320623 is a wasteful number, since it uses less digits than its factorization.

253320623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15517.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 253320623 is about 15916.0492271166. The cubic root of 253320623 is about 632.7374148698.

Adding to 253320623 its reverse (326023352), we get a palindrome (579343975).

The spelling of 253320623 in words is "two hundred fifty-three million, three hundred twenty thousand, six hundred twenty-three".

Divisors: 1 31 547 14939 16957 463109 8171633 253320623