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989020012 = 22997247999
BaseRepresentation
bin111010111100110…
…011111101101100
32112221000102101211
4322330303331230
54011142120022
6242050044204
733336350161
oct7274637554
92487012354
10989020012
11468304412
12237279664
13129b94556
14954d0068
155bc62e77
hex3af33f6c

989020012 has 12 divisors (see below), whose sum is σ = 1732528000. Its totient is φ = 494012016.

The previous prime is 989020007. The next prime is 989020037. The reversal of 989020012 is 210020989.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120012 + ... + 127987.

Almost surely, 2989020012 is an apocalyptic number.

It is an amenable number.

989020012 is a deficient number, since it is larger than the sum of its proper divisors (743507988).

989020012 is a wasteful number, since it uses less digits than its factorization.

989020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249000 (or 248998 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 989020012 is about 31448.6885577125. The cubic root of 989020012 is about 996.3265261134.

The spelling of 989020012 in words is "nine hundred eighty-nine million, twenty thousand, twelve".

Divisors: 1 2 4 997 1994 3988 247999 495998 991996 247255003 494510006 989020012