Search a number
-
+
125000138893 = 7291511407521
BaseRepresentation
bin111010001101010010…
…1101100000010001101
3102221122110210222120211
41310122211230002031
54022000013421033
6133231350442421
712013422435550
oct1643245540215
9387573728524
10125000138893
1149015357513
1220286363411
13ba31094236
14609b442697
1533b8e382cd
hex1d1a96c08d

125000138893 has 16 divisors (see below), whose sum is σ = 147881583360. Its totient is φ = 103379673600.

The previous prime is 125000138891. The next prime is 125000138917. The reversal of 125000138893 is 398831000521.

It is not a de Polignac number, because 125000138893 - 21 = 125000138891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125000138891) 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 15 ways as a sum of consecutive naturals, for example, 102973 + ... + 510493.

It is an arithmetic number, because the mean of its divisors is an integer number (9242598960).

Almost surely, 2125000138893 is an apocalyptic number.

It is an amenable number.

125000138893 is a deficient number, since it is larger than the sum of its proper divisors (22881444467).

125000138893 is a wasteful number, since it uses less digits than its factorization.

125000138893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409068.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 125000138893 in words is "one hundred twenty-five billion, one hundred thirty-eight thousand, eight hundred ninety-three".

Divisors: 1 7 29 203 1511 10577 43819 306733 407521 2852647 11818109 82726763 615764231 4310349617 17857162699 125000138893