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73157901469 is a prime number
BaseRepresentation
bin100010000100010001…
…1001111110010011101
320222211111111110022021
41010020203033302131
52144311410321334
653335215420141
75166630621322
oct1041043176235
9228744443267
1073157901469
11290318011a4
1212218524651
136b8b7663c3
1437801a2b49
151d829953b4
hex11088cfc9d

73157901469 has 2 divisors, whose sum is σ = 73157901470. Its totient is φ = 73157901468.

The previous prime is 73157901451. The next prime is 73157901533. The reversal of 73157901469 is 96410975137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72785025369 + 372876100 = 269787^2 + 19310^2 .

It is a cyclic number.

It is not a de Polignac number, because 73157901469 - 227 = 73023683741 is a prime.

It is a super-2 number, since 2×731579014692 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73157901449) 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, 36578950734 + 36578950735.

It is an arithmetic number, because the mean of its divisors is an integer number (36578950735).

Almost surely, 273157901469 is an apocalyptic number.

It is an amenable number.

73157901469 is a deficient number, since it is larger than the sum of its proper divisors (1).

73157901469 is an equidigital number, since it uses as much as digits as its factorization.

73157901469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 73157901469 in words is "seventy-three billion, one hundred fifty-seven million, nine hundred one thousand, four hundred sixty-nine".