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12254103553 = 2333153613
BaseRepresentation
bin10110110100110011…
…01100100000000001
31011122000020221220011
423122121230200001
5200044022303203
65343543544521
7612445106266
oct133231544001
934560227804
1012254103553
11521913840a
12245ba5b141
1312039b2c63
1484368526d
154bac1576d
hex2da66c801

12254103553 has 32 divisors (see below), whose sum is σ = 13495818240. Its totient is φ = 11111031360.

The previous prime is 12254103517. The next prime is 12254103569. The reversal of 12254103553 is 35530145221.

It is not a de Polignac number, because 12254103553 - 213 = 12254095361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (12254103853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19990075 + ... + 19990687.

It is an arithmetic number, because the mean of its divisors is an integer number (421744320).

Almost surely, 212254103553 is an apocalyptic number.

It is an amenable number.

12254103553 is a deficient number, since it is larger than the sum of its proper divisors (1241714687).

12254103553 is an frugal number, since it uses more digits than its factorization.

12254103553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 12254103553 its reverse (35530145221), we get a palindrome (47784248774).

The spelling of 12254103553 in words is "twelve billion, two hundred fifty-four million, one hundred three thousand, five hundred fifty-three".

Divisors: 1 23 31 53 529 613 713 1219 1643 12167 14099 16399 19003 28037 32489 37789 324277 377177 437069 644851 747247 869147 1007159 7458371 10052587 17186681 19990381 23164657 231209501 395293663 532787111 12254103553