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7897253223 = 37336060517
BaseRepresentation
bin1110101101011011…
…01000010101100111
3202101101002000211010
413112231220111213
5112133144100343
63343345313303
7366462354606
oct72655502547
922341060733
107897253223
113392880262
121644935833
1398b17a302
1454cb9da3d
153134a1d33
hex1d6b68567

7897253223 has 8 divisors (see below), whose sum is σ = 10673913328. Its totient is φ = 5192714304.

The previous prime is 7897253209. The next prime is 7897253227. The reversal of 7897253223 is 3223527987.

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

It is not a de Polignac number, because 7897253223 - 222 = 7893058919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7897253227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18030040 + ... + 18030477.

It is an arithmetic number, because the mean of its divisors is an integer number (1334239166).

Almost surely, 27897253223 is an apocalyptic number.

7897253223 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

7897253223 is a deficient number, since it is larger than the sum of its proper divisors (2776660105).

7897253223 is a wasteful number, since it uses less digits than its factorization.

7897253223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36060593.

The product of its digits is 1270080, while the sum is 48.

The square root of 7897253223 is about 88866.4910019519. The cubic root of 7897253223 is about 1991.4008488722.

The spelling of 7897253223 in words is "seven billion, eight hundred ninety-seven million, two hundred fifty-three thousand, two hundred twenty-three".

Divisors: 1 3 73 219 36060517 108181551 2632417741 7897253223