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1220320041 = 31084737501
BaseRepresentation
bin100100010111100…
…1001101100101001
310011001020200101120
41020233021230221
54444400220131
6321031405453
742145356243
oct11057115451
93131220346
101220320041
11576925566
122a0823889
13165a8a485
14b80dd093
1572201496
hex48bc9b29

1220320041 has 8 divisors (see below), whose sum is σ = 1627286784. Its totient is φ = 813450000.

The previous prime is 1220320021. The next prime is 1220320081. The reversal of 1220320041 is 1400230221.

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

It is not a de Polignac number, because 1220320041 - 25 = 1220320009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220320041.

It is not an unprimeable number, because it can be changed into a prime (1220320021) 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, 13791 + ... + 51291.

It is an arithmetic number, because the mean of its divisors is an integer number (203410848).

Almost surely, 21220320041 is an apocalyptic number.

It is an amenable number.

1220320041 is a deficient number, since it is larger than the sum of its proper divisors (406966743).

1220320041 is a wasteful number, since it uses less digits than its factorization.

1220320041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48351.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1220320041 is about 34933.0794663167. The cubic root of 1220320041 is about 1068.6231573141.

Adding to 1220320041 its reverse (1400230221), we get a palindrome (2620550262).

The spelling of 1220320041 in words is "one billion, two hundred twenty million, three hundred twenty thousand, forty-one".

Divisors: 1 3 10847 32541 37501 112503 406773347 1220320041