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37680244997 = 296197209669
BaseRepresentation
bin100011000101111010…
…101110100100000101
310121021000000202212112
4203011322232210011
51104132120314442
625150550230405
72502515540453
oct430572564405
9117230022775
1037680244997
1114a8657484a
127377055405
1337265b1675
141b764799d3
15ea8012082
hex8c5eae905

37680244997 has 8 divisors (see below), whose sum is σ = 38986039800. Its totient is φ = 36374881984.

The previous prime is 37680244919. The next prime is 37680245011. The reversal of 37680244997 is 79944208673.

It is a Cunningham number, because it is equal to 1941142+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 37680244996 = 1^2 + 194114^2 .

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 37680244997 - 210 = 37680243973 is a prime.

It is a super-3 number, since 3×376802449973 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37680244907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74879 + ... + 284547.

It is an arithmetic number, because the mean of its divisors is an integer number (4873254975).

Almost surely, 237680244997 is an apocalyptic number.

It is an amenable number.

37680244997 is a deficient number, since it is larger than the sum of its proper divisors (1305794803).

37680244997 is a wasteful number, since it uses less digits than its factorization.

37680244997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215895.

The product of its (nonzero) digits is 18289152, while the sum is 59.

The spelling of 37680244997 in words is "thirty-seven billion, six hundred eighty million, two hundred forty-four thousand, nine hundred ninety-seven".

Divisors: 1 29 6197 179713 209669 6080401 1299318793 37680244997