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102305032 = 2312788129
BaseRepresentation
bin1100001100100…
…00110100001000
321010111122010021
412012100310020
5202142230112
614052430224
72351402254
oct606206410
9233448107
10102305032
1152826315
122a318374
131826ca2b
14d831264
158eac907
hex6190d08

102305032 has 8 divisors (see below), whose sum is σ = 191821950. Its totient is φ = 51152512.

The previous prime is 102305029. The next prime is 102305033. The reversal of 102305032 is 230503201.

It can be written as a sum of positive squares in only one way, i.e., 78039556 + 24265476 = 8834^2 + 4926^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 102304997 and 102305015.

It is not an unprimeable number, because it can be changed into a prime (102305033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6394057 + ... + 6394072.

Almost surely, 2102305032 is an apocalyptic number.

It is an amenable number.

102305032 is a deficient number, since it is larger than the sum of its proper divisors (89516918).

102305032 is a wasteful number, since it uses less digits than its factorization.

102305032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12788135 (or 12788131 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 102305032 is about 10114.5949993067. The cubic root of 102305032 is about 467.6981641529.

Adding to 102305032 its reverse (230503201), we get a palindrome (332808233).

The spelling of 102305032 in words is "one hundred two million, three hundred five thousand, thirty-two".

Divisors: 1 2 4 8 12788129 25576258 51152516 102305032