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1220124441 = 34331729837
BaseRepresentation
bin100100010111001…
…1001111100011001
310011000212202002010
41020232121330121
54444322440231
6321023300133
742143613054
oct11056317431
93130782063
101220124441
11576801608
122a074a649
13165a1c433
14b808ba9b
15721b3546
hex48b99f19

1220124441 has 16 divisors (see below), whose sum is σ = 1669973184. Its totient is φ = 791966784.

The previous prime is 1220124341. The next prime is 1220124449. The reversal of 1220124441 is 1444210221.

It is not a de Polignac number, because 1220124441 - 29 = 1220123929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220124449) 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, 25975 + ... + 55811.

It is an arithmetic number, because the mean of its divisors is an integer number (104373324).

Almost surely, 21220124441 is an apocalyptic number.

It is an amenable number.

1220124441 is a deficient number, since it is larger than the sum of its proper divisors (449848743).

1220124441 is a wasteful number, since it uses less digits than its factorization.

1220124441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30200.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1220124441 is about 34930.2797154560. The cubic root of 1220124441 is about 1068.5660592165.

Adding to 1220124441 its reverse (1444210221), we get a palindrome (2664334662).

The spelling of 1220124441 in words is "one billion, two hundred twenty million, one hundred twenty-four thousand, four hundred forty-one".

Divisors: 1 3 43 129 317 951 13631 29837 40893 89511 1282991 3848973 9458329 28374987 406708147 1220124441