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3172490349161 = 723471319317857
BaseRepresentation
bin101110001010100111001…
…010010000101001101001
3102020021202022021220101112
4232022213022100221221
5403434230012133121
610425231050200105
7445130161014320
oct56124712205151
912207668256345
103172490349161
11101349a106051
12432a24723035
131a021a6b7773
14ad7995cb0b7
15577cca1075b
hex2e2a7290a69

3172490349161 has 32 divisors (see below), whose sum is σ = 3866780712960. Its totient is φ = 2543768510976.

The previous prime is 3172490349157. The next prime is 3172490349169. The reversal of 3172490349161 is 1619430942713.

It is not a de Polignac number, because 3172490349161 - 22 = 3172490349157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3172490349169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9821945 + ... + 10139801.

It is an arithmetic number, because the mean of its divisors is an integer number (120836897280).

Almost surely, 23172490349161 is an apocalyptic number.

It is an amenable number.

3172490349161 is a deficient number, since it is larger than the sum of its proper divisors (694290363799).

3172490349161 is a wasteful number, since it uses less digits than its factorization.

3172490349161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319253.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 3172490349161 in words is "three trillion, one hundred seventy-two billion, four hundred ninety million, three hundred forty-nine thousand, one hundred sixty-one".

Divisors: 1 7 23 47 161 329 1081 1319 7567 9233 30337 61993 212359 317857 433951 1425839 2224999 7310711 9980873 14939279 51174977 104574953 343603417 419253383 2405223919 2934773681 9642827809 19704909001 67499794663 137934363007 453212907023 3172490349161