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102143233 = 3114272309
BaseRepresentation
bin1100001011010…
…01010100000001
321010012102011201
412011221110001
5202122040413
614045141201
72350126453
oct605512401
9233172151
10102143233
11527257a5
122a25a801
13182141aa
14d7cc2d3
158e799dd
hex6169501

102143233 has 8 divisors (see below), whose sum is σ = 105557760. Its totient is φ = 98736240.

The previous prime is 102143159. The next prime is 102143257. The reversal of 102143233 is 332341201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-102143233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102143233.

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 7 ways as a sum of consecutive naturals, for example, 43083 + ... + 45391.

It is an arithmetic number, because the mean of its divisors is an integer number (13194720).

Almost surely, 2102143233 is an apocalyptic number.

It is an amenable number.

102143233 is a deficient number, since it is larger than the sum of its proper divisors (3414527).

102143233 is a wasteful number, since it uses less digits than its factorization.

102143233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 102143233 is about 10106.5935408524. The cubic root of 102143233 is about 467.4514737015.

Adding to 102143233 its reverse (332341201), we get a palindrome (434484434).

The spelling of 102143233 in words is "one hundred two million, one hundred forty-three thousand, two hundred thirty-three".

Divisors: 1 31 1427 2309 44237 71579 3294943 102143233