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38073402215 = 5173173197933
BaseRepresentation
bin100011011101010110…
…100000001101100111
310122021101211020011222
4203131112200031213
51110433242332330
625253553050555
72515331402432
oct433526401547
9118241736158
1038073402215
1115168496672
127466856a5b
133789b98484
141bb277c819
15ecc7c30e5
hex8dd5a0367

38073402215 has 32 divisors (see below), whose sum is σ = 50620432896. Its totient is φ = 27362119680.

The previous prime is 38073402203. The next prime is 38073402217. The reversal of 38073402215 is 51220437083.

38073402215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-38073402215 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38073402217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93389 + ... + 291321.

It is an arithmetic number, because the mean of its divisors is an integer number (1581888528).

Almost surely, 238073402215 is an apocalyptic number.

38073402215 is a deficient number, since it is larger than the sum of its proper divisors (12547030681).

38073402215 is a wasteful number, since it uses less digits than its factorization.

38073402215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198059.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 38073402215 its reverse (51220437083), we get a palindrome (89293839298).

The spelling of 38073402215 in words is "thirty-eight billion, seventy-three million, four hundred two thousand, two hundred fifteen".

Divisors: 1 5 17 31 73 85 155 365 527 1241 2263 2635 6205 11315 38471 192355 197933 989665 3364861 6135923 14449109 16824305 30679615 72245545 104310691 245634853 447922379 521553455 1228174265 2239611895 7614680443 38073402215