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994213908 = 223232718443
BaseRepresentation
bin111011010000101…
…000000000010100
32120021210022002100
4323100220000110
54014004321113
6242353242100
733431451552
oct7320500024
92507708070
10994213908
11470231696
12238b63330
1312ac9266c
1496082bd2
155c43bd73
hex3b428014

994213908 has 36 divisors (see below), whose sum is σ = 2514217888. Its totient is φ = 331264080.

The previous prime is 994213901. The next prime is 994213951. The reversal of 994213908 is 809312499.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×9942139082 = 1976922589721264928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994213901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113535 + ... + 121977.

Almost surely, 2994213908 is an apocalyptic number.

It is an amenable number.

994213908 is an abundant number, since it is smaller than the sum of its proper divisors (1520003980).

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

994213908 is a wasteful number, since it uses less digits than its factorization.

994213908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11724 (or 11719 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 994213908 is about 31531.1577332644. The cubic root of 994213908 is about 998.0675707894.

The spelling of 994213908 in words is "nine hundred ninety-four million, two hundred thirteen thousand, nine hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 3271 6542 8443 9813 13084 16886 19626 25329 29439 33772 39252 50658 58878 75987 101316 117756 151974 303948 27617053 55234106 82851159 110468212 165702318 248553477 331404636 497106954 994213908