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2997145812 = 223249762151
BaseRepresentation
bin1011001010100100…
…1101000011010100
321201212122210010110
42302221031003110
522114232131222
61213223123020
7134162214303
oct26251150324
97655583113
102997145812
1112a88a1011
126b78a3470
13389c2537b
142060a243a
151281cd30c
hexb2a4d0d4

2997145812 has 12 divisors (see below), whose sum is σ = 6993340256. Its totient is φ = 999048600.

The previous prime is 2997145807. The next prime is 2997145841. The reversal of 2997145812 is 2185417992.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124881064 + ... + 124881087.

Almost surely, 22997145812 is an apocalyptic number.

It is an amenable number.

2997145812 is an abundant number, since it is smaller than the sum of its proper divisors (3996194444).

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

2997145812 is a wasteful number, since it uses less digits than its factorization.

2997145812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249762158 (or 249762156 counting only the distinct ones).

The product of its digits is 362880, while the sum is 48.

The square root of 2997145812 is about 54746.1944978827. The cubic root of 2997145812 is about 1441.7920416890.

The spelling of 2997145812 in words is "two billion, nine hundred ninety-seven million, one hundred forty-five thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 249762151 499524302 749286453 999048604 1498572906 2997145812