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13122112230 = 2325145801247
BaseRepresentation
bin11000011100010001…
…11000101011100110
31020212111120100221200
430032020320223212
5203333230042410
610010032223330
7643115053653
oct141610705346
936774510850
1013122112230
1156240aa157
12266269ab46
131311788166
148c6a74c2a
1551c0233c0
hex30e238ae6

13122112230 has 24 divisors (see below), whose sum is σ = 34117492032. Its totient is φ = 3499229904.

The previous prime is 13122112189. The next prime is 13122112249. The reversal of 13122112230 is 3221122131.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 72900534 + ... + 72900713.

It is an arithmetic number, because the mean of its divisors is an integer number (1421562168).

Almost surely, 213122112230 is an apocalyptic number.

13122112230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13122112230 is an abundant number, since it is smaller than the sum of its proper divisors (20995379802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13122112230 is a wasteful number, since it uses less digits than its factorization.

13122112230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145801260 (or 145801257 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13122112230 its reverse (3221122131), we get a palindrome (16343234361).

Subtracting from 13122112230 its reverse (3221122131), we obtain a palindrome (9900990099).

The spelling of 13122112230 in words is "thirteen billion, one hundred twenty-two million, one hundred twelve thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 145801247 291602494 437403741 729006235 874807482 1312211223 1458012470 2187018705 2624422446 4374037410 6561056115 13122112230