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102100271 = 7213295527
BaseRepresentation
bin1100001010111…
…10110100101111
321010010020020112
412011132310233
5202114202041
614044210235
72346560300
oct605366457
9233106215
10102100271
11526a6499
122a23997b
13181ca780
14d7ba7a7
158e6bdeb
hex615ed2f

102100271 has 24 divisors (see below), whose sum is σ = 132340320. Its totient is φ = 77982912.

The previous prime is 102100259. The next prime is 102100277. The reversal of 102100271 is 172001201.

It is not a de Polignac number, because 102100271 - 210 = 102099247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100277) 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, 15710 + ... + 21236.

It is an arithmetic number, because the mean of its divisors is an integer number (5514180).

Almost surely, 2102100271 is an apocalyptic number.

102100271 is a deficient number, since it is larger than the sum of its proper divisors (30240049).

102100271 is a wasteful number, since it uses less digits than its factorization.

102100271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5583 (or 5576 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 102100271 is about 10104.4678731737. The cubic root of 102100271 is about 467.3859269658.

Adding to 102100271 its reverse (172001201), we get a palindrome (274101472).

The spelling of 102100271 in words is "one hundred two million, one hundred thousand, two hundred seventy-one".

Divisors: 1 7 13 29 49 91 203 377 637 1421 2639 5527 18473 38689 71851 160283 270823 502957 1121981 2083679 3520699 7853867 14585753 102100271