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989012713211 = 4973919884049
BaseRepresentation
bin11100110010001011100…
…00000101111011111011
310111112210222220102111022
432121011300011323323
5112200444223310321
62034202434453055
7131311441232645
oct16310560057373
93445728812438
10989012713211
1135148a990796
1213b81643418b
1372356ba2a03
1435c23125895
151aad6d88dab
hexe645c05efb

989012713211 has 4 divisors (see below), whose sum is σ = 989032647000. Its totient is φ = 988992779424.

The previous prime is 989012713147. The next prime is 989012713229. The reversal of 989012713211 is 112317210989.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 989012713211 - 26 = 989012713147 is a prime.

It is a super-2 number, since 2×9890127132112 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989012743211) 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, 9892286 + ... + 9991763.

It is an arithmetic number, because the mean of its divisors is an integer number (247258161750).

Almost surely, 2989012713211 is an apocalyptic number.

989012713211 is a deficient number, since it is larger than the sum of its proper divisors (19933789).

989012713211 is a wasteful number, since it uses less digits than its factorization.

989012713211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19933788.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 989012713211 in words is "nine hundred eighty-nine billion, twelve million, seven hundred thirteen thousand, two hundred eleven".

Divisors: 1 49739 19884049 989012713211