Search a number
-
+
71165056130 = 2571953507561
BaseRepresentation
bin100001001000111000…
…1001001010010000010
320210200121121102102122
41002101301021102002
52131221223244010
652405350044242
75066351665520
oct1022161112202
9223617542378
1071165056130
11281a9900a83
1211961049682
13693192578c
14363164b310
151cb7a47855
hex1091c49482

71165056130 has 32 divisors (see below), whose sum is σ = 154101778560. Its totient is φ = 23115265920.

The previous prime is 71165056129. The next prime is 71165056133. The reversal of 71165056130 is 3165056117.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71165056133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26752451 + ... + 26755110.

It is an arithmetic number, because the mean of its divisors is an integer number (4815680580).

Almost surely, 271165056130 is an apocalyptic number.

71165056130 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71165056130 is an abundant number, since it is smaller than the sum of its proper divisors (82936722430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71165056130 is a wasteful number, since it uses less digits than its factorization.

71165056130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53507594.

The product of its (nonzero) digits is 18900, while the sum is 35.

The spelling of 71165056130 in words is "seventy-one billion, one hundred sixty-five million, fifty-six thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 19 35 38 70 95 133 190 266 665 1330 53507561 107015122 267537805 374552927 535075610 749105854 1016643659 1872764635 2033287318 3745529270 5083218295 7116505613 10166436590 14233011226 35582528065 71165056130