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102632146 = 2457112289
BaseRepresentation
bin1100001111000…
…00101011010010
321011010020211121
412013200223102
5202233212041
614103432454
72354234041
oct607405322
9234106747
10102632146
1152a2a061
122a45572a
13183558a6
14d8b8558
1590247d1
hex61e0ad2

102632146 has 8 divisors (see below), whose sum is σ = 154286460. Its totient is φ = 51203328.

The previous prime is 102632119. The next prime is 102632147. The reversal of 102632146 is 641236201.

It can be written as a sum of positive squares in 2 ways, for example, as 72437121 + 30195025 = 8511^2 + 5495^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 102632146.

It is not an unprimeable number, because it can be changed into a prime (102632147) 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, 55231 + ... + 57058.

Almost surely, 2102632146 is an apocalyptic number.

102632146 is a deficient number, since it is larger than the sum of its proper divisors (51654314).

102632146 is a wasteful number, since it uses less digits than its factorization.

102632146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112748.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 102632146 is about 10130.7524893267. The cubic root of 102632146 is about 468.1961124420.

Adding to 102632146 its reverse (641236201), we get a palindrome (743868347).

The spelling of 102632146 in words is "one hundred two million, six hundred thirty-two thousand, one hundred forty-six".

Divisors: 1 2 457 914 112289 224578 51316073 102632146