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38729041 = 136014957
BaseRepresentation
bin1001001110111…
…1010101010001
32200212122020221
42103233111101
534403312131
63502033041
7650122441
oct223572521
980778227
1038729041
111a95277a
1210b78781
1380401c0
145202121
153600411
hex24ef551

38729041 has 8 divisors (see below), whose sum is σ = 41786024. Its totient is φ = 35683200.

The previous prime is 38729023. The next prime is 38729059. The reversal of 38729041 is 14092783.

It is an interprime number because it is at equal distance from previous prime (38729023) and next prime (38729059).

It can be written as a sum of positive squares in 4 ways, for example, as 11532816 + 27196225 = 3396^2 + 5215^2 .

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 38729041 - 27 = 38728913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38728988 and 38729006.

It is not an unprimeable number, because it can be changed into a prime (38729441) 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, 5335 + ... + 10291.

It is an arithmetic number, because the mean of its divisors is an integer number (5223253).

Almost surely, 238729041 is an apocalyptic number.

It is an amenable number.

38729041 is a deficient number, since it is larger than the sum of its proper divisors (3056983).

38729041 is a wasteful number, since it uses less digits than its factorization.

38729041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 38729041 is about 6223.2661039040. The cubic root of 38729041 is about 338.3339515359. Note that the first 3 decimals are identical.

The spelling of 38729041 in words is "thirty-eight million, seven hundred twenty-nine thousand, forty-one".

Divisors: 1 13 601 4957 7813 64441 2979157 38729041