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13211122430 = 2511210918283
BaseRepresentation
bin11000100110111000…
…11011101011111110
31021002201001112222202
430103130123223332
5204024021404210
610022532111502
7645245454632
oct142334335376
937081045882
1013211122430
11566a374900
122688465592
13132705170c
148d4804dc2
15524c569a5
hex31371bafe

13211122430 has 24 divisors (see below), whose sum is σ = 26138371896. Its totient is φ = 4804044080.

The previous prime is 13211122429. The next prime is 13211122481. The reversal of 13211122430 is 3422111231.

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, 5457932 + ... + 5460351.

It is an arithmetic number, because the mean of its divisors is an integer number (1089098829).

Almost surely, 213211122430 is an apocalyptic number.

13211122430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13211122430 is a deficient number, since it is larger than the sum of its proper divisors (12927249466).

13211122430 is a wasteful number, since it uses less digits than its factorization.

13211122430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10918312 (or 10918301 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13211122430 its reverse (3422111231), we get a palindrome (16633233661).

The spelling of 13211122430 in words is "thirteen billion, two hundred eleven million, one hundred twenty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 121 242 605 1210 10918283 21836566 54591415 109182830 120101113 240202226 600505565 1201011130 1321112243 2642224486 6605561215 13211122430