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14638295493 = 321626477277
BaseRepresentation
bin11011010001000001…
…01010100111000101
31101210011112110101100
431220200222213011
5214434400423433
610420313250313
71025515313223
oct155040524705
941704473340
1014638295493
116231a33078
122a06403999
1314c3925513
149cc18bb13
155aa1b7b13
hex36882a9c5

14638295493 has 6 divisors (see below), whose sum is σ = 21144204614. Its totient is φ = 9758863656.

The previous prime is 14638295479. The next prime is 14638295527. The reversal of 14638295493 is 39459283641.

14638295493 is a `hidden beast` number, since 1 + 4 + 63 + 8 + 2 + 95 + 493 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13441619844 + 1196675649 = 115938^2 + 34593^2 .

It is not a de Polignac number, because 14638295493 - 26 = 14638295429 is a prime.

It is a super-2 number, since 2×146382954932 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14638295443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 813238630 + ... + 813238647.

Almost surely, 214638295493 is an apocalyptic number.

It is an amenable number.

14638295493 is a deficient number, since it is larger than the sum of its proper divisors (6505909121).

14638295493 is a wasteful number, since it uses less digits than its factorization.

14638295493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626477283 (or 1626477280 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The spelling of 14638295493 in words is "fourteen billion, six hundred thirty-eight million, two hundred ninety-five thousand, four hundred ninety-three".

Divisors: 1 3 9 1626477277 4879431831 14638295493