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102532280 = 2352563307
BaseRepresentation
bin1100001110010…
…00010010111000
321010221011211212
412013020102320
5202222013110
614101342252
72353336634
oct607102270
9233834755
10102532280
1152971024
122a407988
131831c2b6
14d88ddc4
159004e05
hex61c84b8

102532280 has 16 divisors (see below), whose sum is σ = 230697720. Its totient is φ = 41012896.

The previous prime is 102532249. The next prime is 102532351. The reversal of 102532280 is 82235201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281614 + ... + 1281693.

Almost surely, 2102532280 is an apocalyptic number.

102532280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102532280 is an abundant number, since it is smaller than the sum of its proper divisors (128165440).

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

102532280 is a wasteful number, since it uses less digits than its factorization.

102532280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563318 (or 2563314 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 102532280 is about 10125.8224357333. The cubic root of 102532280 is about 468.0442040697.

Adding to 102532280 its reverse (82235201), we get a palindrome (184767481).

The spelling of 102532280 in words is "one hundred two million, five hundred thirty-two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 2563307 5126614 10253228 12816535 20506456 25633070 51266140 102532280