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94238688609 = 3213915787961
BaseRepresentation
bin101011111000100010…
…0000100010101100001
3100000020122201101210100
41113301010010111201
53021000101013414
6111143114053013
76544215431202
oct1276104042541
9300218641710
1094238688609
1136a6a31262a
121632041a169
138b6b025950
1447bdc255a9
1526b854e609
hex15f1104561

94238688609 has 24 divisors (see below), whose sum is σ = 146611191272. Its totient is φ = 57986046720.

The previous prime is 94238688581. The next prime is 94238688613. The reversal of 94238688609 is 90688683249.

It can be written as a sum of positive squares in 4 ways, for example, as 11501919009 + 82736769600 = 107247^2 + 287640^2 .

It is not a de Polignac number, because 94238688609 - 28 = 94238688353 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (94238688679) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1027389 + ... + 1115349.

Almost surely, 294238688609 is an apocalyptic number.

It is an amenable number.

94238688609 is a deficient number, since it is larger than the sum of its proper divisors (52372502663).

94238688609 is a wasteful number, since it uses less digits than its factorization.

94238688609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97137 (or 97134 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 94238688609 in words is "ninety-four billion, two hundred thirty-eight million, six hundred eighty-eight thousand, six hundred nine".

Divisors: 1 3 9 13 39 117 9157 27471 82413 87961 119041 263883 357123 791649 1071369 1143493 3430479 10291437 805458877 2416376631 7249129893 10470965401 31412896203 94238688609