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1663284245 = 5747522407
BaseRepresentation
bin110001100100011…
…1011010000010101
311021220202121001012
41203020323100111
511401300043440
6433013542005
756134453130
oct14310732025
94256677035
101663284245
11783976087
123a5044905
1320679287c
1411ac89217
159b04ee65
hex6323b415

1663284245 has 8 divisors (see below), whose sum is σ = 2281075584. Its totient is φ = 1140537744.

The previous prime is 1663284239. The next prime is 1663284251. The reversal of 1663284245 is 5424823661.

It is an interprime number because it is at equal distance from previous prime (1663284239) and next prime (1663284251).

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-1663284245 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23761169 + ... + 23761238.

It is an arithmetic number, because the mean of its divisors is an integer number (285134448).

Almost surely, 21663284245 is an apocalyptic number.

It is an amenable number.

1663284245 is a deficient number, since it is larger than the sum of its proper divisors (617791339).

1663284245 is an equidigital number, since it uses as much as digits as its factorization.

1663284245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47522419.

The product of its digits is 276480, while the sum is 41.

The square root of 1663284245 is about 40783.3819710921. The cubic root of 1663284245 is about 1184.8284974372.

The spelling of 1663284245 in words is "one billion, six hundred sixty-three million, two hundred eighty-four thousand, two hundred forty-five".

Divisors: 1 5 7 35 47522407 237612035 332656849 1663284245