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1220443413223 = 13128033323711
BaseRepresentation
bin10001110000101000000…
…110001001101011100111
311022200011210121002211011
4101300220012021223213
5124443432003210343
62332355225523051
7154113503563606
oct21605006115347
94280153532734
101220443413223
11430650543021
12178644043487
138b119ac4218
14430d9675a3d
1521b2e84329d
hex11c28189ae7

1220443413223 has 8 divisors (see below), whose sum is σ = 1230198875136. Its totient is φ = 1210694604600.

The previous prime is 1220443413103. The next prime is 1220443413229. The reversal of 1220443413223 is 3223143440221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220443413223 - 213 = 1220443405031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220443413229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294663 + ... + 2029048.

It is an arithmetic number, because the mean of its divisors is an integer number (153774859392).

Almost surely, 21220443413223 is an apocalyptic number.

1220443413223 is a deficient number, since it is larger than the sum of its proper divisors (9755461913).

1220443413223 is a wasteful number, since it uses less digits than its factorization.

1220443413223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326645.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1220443413223 its reverse (3223143440221), we get a palindrome (4443586853444).

The spelling of 1220443413223 in words is "one trillion, two hundred twenty billion, four hundred forty-three million, four hundred thirteen thousand, two hundred twenty-three".

Divisors: 1 131 2803 367193 3323711 435406141 9316361933 1220443413223