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9984750331 = 16361256137
BaseRepresentation
bin10010100110010001…
…10011001011111011
3221202212001212111211
421103020303023323
5130422044002311
64330435503551
7502300656163
oct112310631373
927685055454
109984750331
114264149786
121b27a57bb7
13c317ab2ba
146aa1135a3
153d6899821
hex2532332fb

9984750331 has 4 divisors (see below), whose sum is σ = 10046006632. Its totient is φ = 9923494032.

The previous prime is 9984750323. The next prime is 9984750337. The reversal of 9984750331 is 1330574899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1330574899 = 9713717267.

It is a cyclic number.

It is not a de Polignac number, because 9984750331 - 23 = 9984750323 is a prime.

It is a super-2 number, since 2×99847503312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9984750337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30627906 + ... + 30628231.

It is an arithmetic number, because the mean of its divisors is an integer number (2511501658).

Almost surely, 29984750331 is an apocalyptic number.

9984750331 is a deficient number, since it is larger than the sum of its proper divisors (61256301).

9984750331 is a wasteful number, since it uses less digits than its factorization.

9984750331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61256300.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 9984750331 is about 99923.7225637636. The cubic root of 9984750331 is about 2153.3389856752.

The spelling of 9984750331 in words is "nine billion, nine hundred eighty-four million, seven hundred fifty thousand, three hundred thirty-one".

Divisors: 1 163 61256137 9984750331