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994802172 = 2237138571063
BaseRepresentation
bin111011010010110…
…111100111111100
32120022220012000220
4323102313213330
54014132132142
6242414021340
733436451610
oct7322674774
92508805026
10994802172
114705a3661
122391a7850
1312b13a350
1496197340
155c5062ec
hex3b4b79fc

994802172 has 96 divisors (see below), whose sum is σ = 2862892032. Its totient is φ = 261812736.

The previous prime is 994802153. The next prime is 994802173. The reversal of 994802172 is 271208499.

It is a super-2 number, since 2×9948021722 = 1979262722831835168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994802173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 935313 + ... + 936375.

It is an arithmetic number, because the mean of its divisors is an integer number (29821792).

Almost surely, 2994802172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994802172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1431446016).

994802172 is an abundant number, since it is smaller than the sum of its proper divisors (1868089860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

994802172 is a wasteful number, since it uses less digits than its factorization.

994802172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947 (or 1945 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 994802172 is about 31540.4846506835. The cubic root of 994802172 is about 998.2643800328.

The spelling of 994802172 in words is "nine hundred ninety-four million, eight hundred two thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 857 1063 1092 1714 2126 2571 3189 3428 4252 5142 5999 6378 7441 10284 11141 11998 12756 13819 14882 17997 22282 22323 23996 27638 29764 33423 35994 41457 44564 44646 55276 66846 71988 77987 82914 89292 96733 133692 155974 165828 193466 233961 290199 311948 386932 467922 580398 910991 935844 1160796 1821982 2732973 3643964 5465946 6376937 10931892 11842883 12753874 19130811 23685766 25507748 35528649 38261622 47371532 71057298 76523244 82900181 142114596 165800362 248700543 331600724 497401086 994802172