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1220231300050 = 252719118253273
BaseRepresentation
bin10001110000011011011…
…101000000001111010010
311022122122000110122020201
4101300123131000033102
5124443013203100200
62332322211325414
7154105316626060
oct21603335001722
94278560418221
101220231300050
11430551837284
121785a4bb086a
138b0b4b88579
14430b941d030
1521b1ade4c6a
hex11c1b7403d2

1220231300050 has 48 divisors (see below), whose sum is σ = 2607443684352. Its totient is φ = 416174601600.

The previous prime is 1220231300011. The next prime is 1220231300051. The reversal of 1220231300050 is 500031320221.

It is not an unprimeable number, because it can be changed into a prime (1220231300051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9059787 + ... + 9193486.

It is an arithmetic number, because the mean of its divisors is an integer number (54321743424).

Almost surely, 21220231300050 is an apocalyptic number.

1220231300050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220231300050 is an abundant number, since it is smaller than the sum of its proper divisors (1387212384302).

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

1220231300050 is a wasteful number, since it uses less digits than its factorization.

1220231300050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18253483 (or 18253478 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 1220231300050 its reverse (500031320221), we get a palindrome (1720262620271).

The spelling of 1220231300050 in words is "one trillion, two hundred twenty billion, two hundred thirty-one million, three hundred thousand, fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 191 350 382 955 1337 1910 2674 4775 6685 9550 13370 33425 66850 18253273 36506546 91266365 127772911 182532730 255545822 456331825 638864555 912663650 1277729110 3194322775 3486375143 6388645550 6972750286 17431875715 24404626001 34863751430 48809252002 87159378575 122023130005 174318757150 244046260010 610115650025 1220231300050