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102128276 = 22224311383
BaseRepresentation
bin1100001011001…
…01101010010100
321010011122122202
412011211222110
5202121101101
614044544032
72350035035
oct605455224
9233148582
10102128276
1152715538
122a252018
131820a443
14d7c6a8c
158e7536b
hex6165a94

102128276 has 12 divisors (see below), whose sum is σ = 178819872. Its totient is φ = 51036888.

The previous prime is 102128269. The next prime is 102128281. The reversal of 102128276 is 672821201.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3281 + ... + 14663.

It is an arithmetic number, because the mean of its divisors is an integer number (14901656).

Almost surely, 2102128276 is an apocalyptic number.

It is an amenable number.

102128276 is a deficient number, since it is larger than the sum of its proper divisors (76691596).

102128276 is a wasteful number, since it uses less digits than its factorization.

102128276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13630 (or 13628 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 102128276 is about 10105.8535512840. The cubic root of 102128276 is about 467.4286560274.

Adding to 102128276 its reverse (672821201), we get a palindrome (774949477).

The spelling of 102128276 in words is "one hundred two million, one hundred twenty-eight thousand, two hundred seventy-six".

Divisors: 1 2 4 2243 4486 8972 11383 22766 45532 25532069 51064138 102128276