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1220443414040 = 235117126055581
BaseRepresentation
bin10001110000101000000…
…110001001111000011000
311022200011210121010221102
4101300220012021320120
5124443432003222130
62332355225530532
7154113503566154
oct21605006117030
94280153533842
101220443414040
114306505436a4
12178644043a48
138b119ac46c6
14430d9676064
1521b2e843645
hex11c28189e18

1220443414040 has 32 divisors (see below), whose sum is σ = 2748342789360. Its totient is φ = 487760457600.

The previous prime is 1220443414019. The next prime is 1220443414051. The reversal of 1220443414040 is 404143440221.

It is a super-2 number, since 2×12204434140402 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220443413994 and 1220443414012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12980951 + ... + 13074630.

Almost surely, 21220443414040 is an apocalyptic number.

1220443414040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220443414040 is an abundant number, since it is smaller than the sum of its proper divisors (1527899375320).

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

1220443414040 is a wasteful number, since it uses less digits than its factorization.

1220443414040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26056763 (or 26056759 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 1220443414040 its reverse (404143440221), we get a palindrome (1624586854261).

The spelling of 1220443414040 in words is "one trillion, two hundred twenty billion, four hundred forty-three million, four hundred fourteen thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 1171 2342 4684 5855 9368 11710 23420 46840 26055581 52111162 104222324 130277905 208444648 260555810 521111620 1042223240 30511085351 61022170702 122044341404 152555426755 244088682808 305110853510 610221707020 1220443414040