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13122121030 = 251638050381
BaseRepresentation
bin11000011100010001…
…11010110101000110
31020212111120211000121
430032020322311012
5203333230333110
610010032332154
7643115121424
oct141610726506
936774524017
1013122121030
115624105827
1226626a405a
13131178c175
148c6a78114
1551c025cda
hex30e23ad46

13122121030 has 16 divisors (see below), whose sum is σ = 23764727664. Its totient is φ = 5216646240.

The previous prime is 13122121027. The next prime is 13122121039. The reversal of 13122121030 is 3012122131.

It is a junction number, because it is equal to n+sod(n) for n = 13122120995 and 13122121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122121039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4023561 + ... + 4026820.

It is an arithmetic number, because the mean of its divisors is an integer number (1485295479).

Almost surely, 213122121030 is an apocalyptic number.

13122121030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13122121030 is a deficient number, since it is larger than the sum of its proper divisors (10642606634).

13122121030 is a wasteful number, since it uses less digits than its factorization.

13122121030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8050551.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13122121030 its reverse (3012122131), we get a palindrome (16134243161).

It can be divided in two parts, 131221 and 21030, that added together give a palindrome (152251).

The spelling of 13122121030 in words is "thirteen billion, one hundred twenty-two million, one hundred twenty-one thousand, thirty".

Divisors: 1 2 5 10 163 326 815 1630 8050381 16100762 40251905 80503810 1312212103 2624424206 6561060515 13122121030