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12210312013400 = 2352611000845247
BaseRepresentation
bin1011000110101110111101…
…0011110110011001011000
31121020021221122020100100002
42301223233103312121120
53100023204333412100
641545201230232132
72400110625434354
oct261535723663130
947207848210302
1012210312013400
11398840089a326
121452534955648
136a7573242127
14302da7442464
151629418362d5
hexb1aef4f6658

12210312013400 has 48 divisors (see below), whose sum is σ = 28854368499840. Its totient is φ = 4804057180800.

The previous prime is 12210312013379. The next prime is 12210312013423. The reversal of 12210312013400 is 431021301221.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 500410424 + ... + 500434823.

It is an arithmetic number, because the mean of its divisors is an integer number (601132677080).

Almost surely, 212210312013400 is an apocalyptic number.

12210312013400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210312013400 is an abundant number, since it is smaller than the sum of its proper divisors (16644056486440).

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

12210312013400 is a wasteful number, since it uses less digits than its factorization.

12210312013400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000845324 (or 1000845315 counting only the distinct ones).

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

Adding to 12210312013400 its reverse (431021301221), we get a palindrome (12641333314621).

The spelling of 12210312013400 in words is "twelve trillion, two hundred ten billion, three hundred twelve million, thirteen thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 61 100 122 200 244 305 488 610 1220 1525 2440 3050 6100 12200 1000845247 2001690494 4003380988 5004226235 8006761976 10008452470 20016904940 25021131175 40033809880 50042262350 61051560067 100084524700 122103120134 200169049400 244206240268 305257800335 488412480536 610515600670 1221031201340 1526289001675 2442062402680 3052578003350 6105156006700 12210312013400