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13210002444 = 2233173839067
BaseRepresentation
bin11000100110110000…
…01010010000001100
31021002121221122122210
430103120022100030
5204023230034234
610022452110420
7645233111442
oct142330122014
937077848583
1013210002444
11566977a3a1
122688005410
131326a4b9c2
148d45d2b92
15524ad4be9
hex31360a40c

13210002444 has 48 divisors (see below), whose sum is σ = 31004725248. Its totient is φ = 4377499968.

The previous prime is 13210002433. The next prime is 13210002457. The reversal of 13210002444 is 44420001231.

It is a self number, because there is not a number n which added to its sum of digits gives 13210002444.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1452399 + ... + 1461465.

It is an arithmetic number, because the mean of its divisors is an integer number (645931776).

Almost surely, 213210002444 is an apocalyptic number.

It is an amenable number.

13210002444 is an abundant number, since it is smaller than the sum of its proper divisors (17794722804).

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

13210002444 is a wasteful number, since it uses less digits than its factorization.

13210002444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9774 (or 9772 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 13210002444 its reverse (44420001231), we get a palindrome (57630003675).

The spelling of 13210002444 in words is "thirteen billion, two hundred ten million, two thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 317 383 634 766 951 1149 1268 1532 1902 2298 3804 4596 9067 18134 27201 36268 54402 108804 121411 242822 364233 485644 728466 1456932 2874239 3472661 5748478 6945322 8622717 10417983 11496956 13890644 17245434 20835966 34490868 41671932 1100833537 2201667074 3302500611 4403334148 6605001222 13210002444