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245412553 = 2319754163
BaseRepresentation
bin11101010000010…
…11001011001001
3122002210020201211
432220023023021
51000311200203
640204013121
76036654331
oct1650131311
9562706654
10245412553
111165900a1
126a2311a1
133bac7639
14248440c1
1516829c6d
hexea0b2c9

245412553 has 8 divisors (see below), whose sum is σ = 257387328. Its totient is φ = 233546544.

The previous prime is 245412539. The next prime is 245412589. The reversal of 245412553 is 355214542.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-245412553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245412053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22551 + ... + 31612.

It is an arithmetic number, because the mean of its divisors is an integer number (32173416).

Almost surely, 2245412553 is an apocalyptic number.

245412553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

245412553 is a deficient number, since it is larger than the sum of its proper divisors (11974775).

245412553 is a wasteful number, since it uses less digits than its factorization.

245412553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54383.

The product of its digits is 24000, while the sum is 31.

The square root of 245412553 is about 15665.6488215458. The cubic root of 245412553 is about 626.0834991220.

The spelling of 245412553 in words is "two hundred forty-five million, four hundred twelve thousand, five hundred fifty-three".

Divisors: 1 23 197 4531 54163 1245749 10670111 245412553