Search a number
-
+
71428607175 = 3521756022437
BaseRepresentation
bin100001010000101111…
…0100000110011000111
320211100222112012111110
41002201132200303013
52132241210412200
652451442540103
75106032100102
oct1024136406307
9224328465443
1071428607175
112832464a862
1211a15367633
136974401143
143658653739
151cd0c56b50
hex10a17a0cc7

71428607175 has 24 divisors (see below), whose sum is σ = 125042081616. Its totient is φ = 35854359040.

The previous prime is 71428607171. The next prime is 71428607177. The reversal of 71428607175 is 57170682417.

It is not a de Polignac number, because 71428607175 - 22 = 71428607171 is a prime.

It is a super-2 number, since 2×714286071752 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71428607171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28009944 + ... + 28012493.

It is an arithmetic number, because the mean of its divisors is an integer number (5210086734).

Almost surely, 271428607175 is an apocalyptic number.

71428607175 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

71428607175 is a deficient number, since it is larger than the sum of its proper divisors (53613474441).

71428607175 is a wasteful number, since it uses less digits than its factorization.

71428607175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56022467 (or 56022462 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 48.

The spelling of 71428607175 in words is "seventy-one billion, four hundred twenty-eight million, six hundred seven thousand, one hundred seventy-five".

Divisors: 1 3 5 15 17 25 51 75 85 255 425 1275 56022437 168067311 280112185 840336555 952381429 1400560925 2857144287 4201682775 4761907145 14285721435 23809535725 71428607175