Search a number
-
+
38701700685 = 3251997466651
BaseRepresentation
bin100100000010110011…
…010001011001001101
310200220012002002122200
4210002303101121031
51113230113410220
625440155432113
72540031012414
oct440263213115
9120805062580
1038701700685
11154601125aa
127601155639
13385a0c170b
141c31db047b
151017a30890
hex902cd164d

38701700685 has 48 divisors (see below), whose sum is σ = 71341757760. Its totient is φ = 19352908800.

The previous prime is 38701700683. The next prime is 38701700749. The reversal of 38701700685 is 58600710783.

It is not a de Polignac number, because 38701700685 - 21 = 38701700683 is a prime.

It is a super-2 number, since 2×387017006852 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38701700685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38701700683) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 150391 + ... + 316260.

It is an arithmetic number, because the mean of its divisors is an integer number (1486286620).

Almost surely, 238701700685 is an apocalyptic number.

It is an amenable number.

38701700685 is a deficient number, since it is larger than the sum of its proper divisors (32640057075).

38701700685 is a wasteful number, since it uses less digits than its factorization.

38701700685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466778 (or 466775 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 38701700685 in words is "thirty-eight billion, seven hundred one million, seven hundred thousand, six hundred eighty-five".

Divisors: 1 3 5 9 15 19 45 57 95 97 171 285 291 485 855 873 1455 1843 4365 5529 9215 16587 27645 82935 466651 1399953 2333255 4199859 6999765 8866369 20999295 26599107 44331845 45265147 79797321 132995535 135795441 226325735 398986605 407386323 678977205 860037793 2036931615 2580113379 4300188965 7740340137 12900566895 38701700685