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20344511332325 = 521747869438429
BaseRepresentation
bin1001010000000110100110…
…10111101111111111100101
32200000220201222022111102202
410220003103113233333211
510131311024400113300
6111134050043344245
74166561646024365
oct450032327577745
980026658274382
1020344511332325
1165340712a30a4
122346a9b822085
13b4762ca087bb
14504972b869a5
1525431a107ad5
hex1280d35effe5

20344511332325 has 12 divisors (see below), whose sum is σ = 26711146643940. Its totient is φ = 15318220296960.

The previous prime is 20344511332303. The next prime is 20344511332331. The reversal of 20344511332325 is 52323311544302.

It can be written as a sum of positive squares in 6 ways, for example, as 2289635027716 + 18054876304609 = 1513154^2 + 4249103^2 .

It is not a de Polignac number, because 20344511332325 - 226 = 20344444223461 is a prime.

It is a super-2 number, since 2×203445113323252 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23934718790 + ... + 23934719639.

It is an arithmetic number, because the mean of its divisors is an integer number (2225928886995).

Almost surely, 220344511332325 is an apocalyptic number.

20344511332325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20344511332325 is a deficient number, since it is larger than the sum of its proper divisors (6366635311615).

20344511332325 is a wasteful number, since it uses less digits than its factorization.

20344511332325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47869438456 (or 47869438451 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 20344511332325 its reverse (52323311544302), we get a palindrome (72667822876627).

The spelling of 20344511332325 in words is "twenty trillion, three hundred forty-four billion, five hundred eleven million, three hundred thirty-two thousand, three hundred twenty-five".

Divisors: 1 5 17 25 85 425 47869438429 239347192145 813780453293 1196735960725 4068902266465 20344511332325