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997079168 = 2727912
BaseRepresentation
bin111011011011100…
…011100010000000
32120111011212111002
4323123203202000
54020223013133
6242534511132
733465014231
oct7333434200
92514155432
10997079168
11471909378
12239b054a8
1312b756897
14965cb088
155c805ce8
hex3b6e3880

997079168 has 24 divisors (see below), whose sum is σ = 1987080615. Its totient is φ = 498360960.

The previous prime is 997079143. The next prime is 997079191. The reversal of 997079168 is 861970799.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 498539584 + 498539584 = 22328^2 + 22328^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=22328.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 355853 + ... + 358643.

Almost surely, 2997079168 is an apocalyptic number.

It is an amenable number.

997079168 is a deficient number, since it is larger than the sum of its proper divisors (990001447).

997079168 is an frugal number, since it uses more digits than its factorization.

997079168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5596 (or 2793 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 56.

The square root of 997079168 is about 31576.5604206665. The cubic root of 997079168 is about 999.0254398744.

The spelling of 997079168 in words is "nine hundred ninety-seven million, seventy-nine thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 16 32 64 128 2791 5582 11164 22328 44656 89312 178624 357248 7789681 15579362 31158724 62317448 124634896 249269792 498539584 997079168