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3378137021 = 71632960681
BaseRepresentation
bin1100100101011010…
…0100011110111101
322201102120010210222
43021112210132331
523404300341041
61315113111125
7146466455660
oct31126443675
98642503728
103378137021
111483963386
127a33b84a5
1341ab3c75c
142409196d7
1514b88974b
hexc95a47bd

3378137021 has 8 divisors (see below), whose sum is σ = 3884414784. Its totient is φ = 2877780960.

The previous prime is 3378137017. The next prime is 3378137039. The reversal of 3378137021 is 1207318733.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3378137021 - 22 = 3378137017 is a prime.

It is a super-2 number, since 2×33781370212 = 22823619465301508882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3378137051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1479200 + ... + 1481481.

It is an arithmetic number, because the mean of its divisors is an integer number (485551848).

Almost surely, 23378137021 is an apocalyptic number.

It is an amenable number.

3378137021 is a deficient number, since it is larger than the sum of its proper divisors (506277763).

3378137021 is a wasteful number, since it uses less digits than its factorization.

3378137021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960851.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 3378137021 is about 58121.7431001514. The cubic root of 3378137021 is about 1500.4645999349.

The spelling of 3378137021 in words is "three billion, three hundred seventy-eight million, one hundred thirty-seven thousand, twenty-one".

Divisors: 1 7 163 1141 2960681 20724767 482591003 3378137021