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1220202312433 = 13409724731667
BaseRepresentation
bin10001110000011001101…
…110011011001011110001
311022122112222220220201021
4101300121232123023301
5124442433242444213
62332315254135441
7154104515345056
oct21603156331361
94278488826637
101220202312433
11430537438475
12178597351581
138b0abb79330
14430b563502d
1521b185bad8d
hex11c19b9b2f1

1220202312433 has 16 divisors (see below), whose sum is σ = 1317500271360. Its totient is φ = 1123396189056.

The previous prime is 1220202312431. The next prime is 1220202312491. The reversal of 1220202312433 is 3342132020221.

It is a cyclic number.

It is not a de Polignac number, because 1220202312433 - 21 = 1220202312431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220202312398 and 1220202312407.

It is not an unprimeable number, because it can be changed into a prime (1220202312431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38516466 + ... + 38548132.

It is an arithmetic number, because the mean of its divisors is an integer number (82343766960).

Almost surely, 21220202312433 is an apocalyptic number.

1220202312433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1220202312433 is a deficient number, since it is larger than the sum of its proper divisors (97297958927).

1220202312433 is a wasteful number, since it uses less digits than its factorization.

1220202312433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39336.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1220202312433 its reverse (3342132020221), we get a palindrome (4562334332654).

The spelling of 1220202312433 in words is "one trillion, two hundred twenty billion, two hundred two million, three hundred twelve thousand, four hundred thirty-three".

Divisors: 1 13 409 5317 7247 31667 94211 411671 2964023 12951803 38532299 168373439 229490749 2983379737 93861716341 1220202312433