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102143260 = 2255107163
BaseRepresentation
bin1100001011010…
…01010100011100
321010012102012201
412011221110130
5202122041020
614045141244
72350126522
oct605512434
9233172181
10102143260
115272581a
122a25a824
13182141cb
14d7cc312
158e79a0a
hex616951c

102143260 has 12 divisors (see below), whose sum is σ = 214500888. Its totient is φ = 40857296.

The previous prime is 102143257. The next prime is 102143263. The reversal of 102143260 is 62341201.

It is an interprime number because it is at equal distance from previous prime (102143257) and next prime (102143263).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102143263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553562 + ... + 2553601.

It is an arithmetic number, because the mean of its divisors is an integer number (17875074).

Almost surely, 2102143260 is an apocalyptic number.

102143260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102143260 is an abundant number, since it is smaller than the sum of its proper divisors (112357628).

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

102143260 is a wasteful number, since it uses less digits than its factorization.

102143260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107172 (or 5107170 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 102143260 is about 10106.5948766140. The cubic root of 102143260 is about 467.4515148894.

Adding to 102143260 its reverse (62341201), we get a palindrome (164484461).

The spelling of 102143260 in words is "one hundred two million, one hundred forty-three thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 5107163 10214326 20428652 25535815 51071630 102143260