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8861233989 = 323128423681
BaseRepresentation
bin10000100000010101…
…11011001101000101
3211212112222022211110
420100022323031011
5121121433441424
64023142555233
7432406150266
oct102012731505
924775868743
108861233989
113837a32283
121873738b19
13ab2ab582a
14600c1296d
1536ce1ac29
hex2102bb345

8861233989 has 8 divisors (see below), whose sum is σ = 12328673472. Its totient is φ = 5650641920.

The previous prime is 8861233973. The next prime is 8861233999. The reversal of 8861233989 is 9893321688.

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 8861233989 - 24 = 8861233973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8861233949) 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, 64211772 + ... + 64211909.

It is an arithmetic number, because the mean of its divisors is an integer number (1541084184).

Almost surely, 28861233989 is an apocalyptic number.

It is an amenable number.

8861233989 is a deficient number, since it is larger than the sum of its proper divisors (3467439483).

8861233989 is a wasteful number, since it uses less digits than its factorization.

8861233989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128423707.

The product of its digits is 4478976, while the sum is 57.

The square root of 8861233989 is about 94134.1276530462. The cubic root of 8861233989 is about 2069.3378504800.

The spelling of 8861233989 in words is "eight billion, eight hundred sixty-one million, two hundred thirty-three thousand, nine hundred eighty-nine".

Divisors: 1 3 23 69 128423681 385271043 2953744663 8861233989