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1220341037 is a prime number
BaseRepresentation
bin100100010111100…
…1110110100101101
310011001021202012012
41020233032310231
54444401403122
6321032051005
742145504406
oct11057166455
93131252165
101220341037
1157693a313
122a0833a65
13165a96bb6
14b81069ad
15722077e2
hex48bced2d

1220341037 has 2 divisors, whose sum is σ = 1220341038. Its totient is φ = 1220341036.

The previous prime is 1220341021. The next prime is 1220341043. The reversal of 1220341037 is 7301430221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 811452196 + 408888841 = 28486^2 + 20221^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220341037 - 24 = 1220341021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220341007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610170518 + 610170519.

It is an arithmetic number, because the mean of its divisors is an integer number (610170519).

Almost surely, 21220341037 is an apocalyptic number.

It is an amenable number.

1220341037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220341037 is an equidigital number, since it uses as much as digits as its factorization.

1220341037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1220341037 is about 34933.3799824752. The cubic root of 1220341037 is about 1068.6292859476.

Adding to 1220341037 its reverse (7301430221), we get a palindrome (8521771258).

The spelling of 1220341037 in words is "one billion, two hundred twenty million, three hundred forty-one thousand, thirty-seven".