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9885006381 = 329113620763
BaseRepresentation
bin10010011010011000…
…10011101000101101
3221111220101100112110
421031030103220231
5130221030201011
64312513554233
7466650111405
oct111514235055
927456340473
109885006381
114212912668
121aba575979
13c16c27203
1469ab8b805
153ccc45ba6
hex24d313a2d

9885006381 has 8 divisors (see below), whose sum is σ = 13634491680. Its totient is φ = 6362762672.

The previous prime is 9885006361. The next prime is 9885006389. The reversal of 9885006381 is 1836005889.

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

It is a cyclic number.

It is not a de Polignac number, because 9885006381 - 26 = 9885006317 is a prime.

It is a super-2 number, since 2×98850063812 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9885006381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9885006389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56810295 + ... + 56810468.

It is an arithmetic number, because the mean of its divisors is an integer number (1704311460).

Almost surely, 29885006381 is an apocalyptic number.

It is an amenable number.

9885006381 is a deficient number, since it is larger than the sum of its proper divisors (3749485299).

9885006381 is a wasteful number, since it uses less digits than its factorization.

9885006381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113620795.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 9885006381 is about 99423.3693907021. The cubic root of 9885006381 is about 2146.1446234699.

The spelling of 9885006381 in words is "nine billion, eight hundred eighty-five million, six thousand, three hundred eighty-one".

Divisors: 1 3 29 87 113620763 340862289 3295002127 9885006381