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2971997076 = 223247666423
BaseRepresentation
bin1011000100100101…
…0001001110010100
321200010100002112210
42301021101032110
522041312401301
61210524113420
7133435362336
oct26111211624
97603302483
102971997076
111295684434
126ab395870
1338495b569
142029d7456
hexb1251394

2971997076 has 12 divisors (see below), whose sum is σ = 6934659872. Its totient is φ = 990665688.

The previous prime is 2971997059. The next prime is 2971997117. The reversal of 2971997076 is 6707991792.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×29719970763 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123833200 + ... + 123833223.

Almost surely, 22971997076 is an apocalyptic number.

It is an amenable number.

2971997076 is an abundant number, since it is smaller than the sum of its proper divisors (3962662796).

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

2971997076 is a wasteful number, since it uses less digits than its factorization.

2971997076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247666430 (or 247666428 counting only the distinct ones).

The product of its (nonzero) digits is 3000564, while the sum is 57.

The square root of 2971997076 is about 54516.0258639604. The cubic root of 2971997076 is about 1437.7480677471.

The spelling of 2971997076 in words is "two billion, nine hundred seventy-one million, nine hundred ninety-seven thousand, seventy-six".