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1994704416 = 25326926057
BaseRepresentation
bin111011011100100…
…1100011000100000
312011000101111001100
41312321030120200
513041121020131
6525533234400
7100300464525
oct16671143040
95130344040
101994704416
11933a5aa51
12478032a00
1325a341b93
1414ccbb14c
15ba1b87e6
hex76e4c620

1994704416 has 36 divisors (see below), whose sum is σ = 5672441502. Its totient is φ = 664901376.

The previous prime is 1994704399. The next prime is 1994704421. The reversal of 1994704416 is 6144074991.

1994704416 is a `hidden beast` number, since 199 + 47 + 0 + 4 + 416 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1368704016 + 626000400 = 36996^2 + 25020^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3462741 + ... + 3463316.

Almost surely, 21994704416 is an apocalyptic number.

1994704416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1994704416 is an abundant number, since it is smaller than the sum of its proper divisors (3677737086).

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

1994704416 is a wasteful number, since it uses less digits than its factorization.

1994704416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6926073 (or 6926062 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1994704416 is about 44662.1138774241. The cubic root of 1994704416 is about 1258.8080640389.

The spelling of 1994704416 in words is "one billion, nine hundred ninety-four million, seven hundred four thousand, four hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 6926057 13852114 20778171 27704228 41556342 55408456 62334513 83112684 110816912 124669026 166225368 221633824 249338052 332450736 498676104 664901472 997352208 1994704416