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2102530325 = 52780914851
BaseRepresentation
bin111110101010010…
…0001000100010101
312102112021121101112
41331110201010111
513301221432300
6544344304405
7103050133010
oct17524410425
95375247345
102102530325
11989907175
124a8172105
132767957ac
1415d348377
15c48b6e35
hex7d521115

2102530325 has 24 divisors (see below), whose sum is σ = 2983469760. Its totient is φ = 1439856000.

The previous prime is 2102530273. The next prime is 2102530327. The reversal of 2102530325 is 5230352012.

It is not a de Polignac number, because 2102530325 - 220 = 2101481749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102530325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102530327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134150 + ... + 149000.

It is an arithmetic number, because the mean of its divisors is an integer number (124311240).

Almost surely, 22102530325 is an apocalyptic number.

2102530325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2102530325 is a deficient number, since it is larger than the sum of its proper divisors (880939435).

2102530325 is a wasteful number, since it uses less digits than its factorization.

2102530325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15677 (or 15672 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2102530325 is about 45853.3567473528. The cubic root of 2102530325 is about 1281.0932889435.

Adding to 2102530325 its reverse (5230352012), we get a palindrome (7332882337).

The spelling of 2102530325 in words is "two billion, one hundred two million, five hundred thirty thousand, three hundred twenty-five".

Divisors: 1 5 7 25 35 175 809 4045 5663 14851 20225 28315 74255 103957 141575 371275 519785 2598925 12014459 60072295 84101213 300361475 420506065 2102530325