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399020301 = 32257917191
BaseRepresentation
bin10111110010001…
…001000100001101
31000210211022221200
4113302021010031
51304122122201
6103332220113
712613421331
oct2762110415
91023738850
10399020301
11195266949
12b176a639
136488a6b4
143adcb7c1
152506d386
hex17c8910d

399020301 has 12 divisors (see below), whose sum is σ = 576619680. Its totient is φ = 265894920.

The previous prime is 399020291. The next prime is 399020317. The reversal of 399020301 is 103020993.

It is not a de Polignac number, because 399020301 - 211 = 399018253 is a prime.

It is a super-2 number, since 2×3990203012 = 318434401220261202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399020341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14616 + ... + 31806.

It is an arithmetic number, because the mean of its divisors is an integer number (48051640).

Almost surely, 2399020301 is an apocalyptic number.

It is an amenable number.

399020301 is a deficient number, since it is larger than the sum of its proper divisors (177599379).

399020301 is a wasteful number, since it uses less digits than its factorization.

399020301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19776 (or 19773 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 399020301 is about 19975.4925095728. The cubic root of 399020301 is about 736.2042676225.

The spelling of 399020301 in words is "three hundred ninety-nine million, twenty thousand, three hundred one".

Divisors: 1 3 9 2579 7737 17191 23211 51573 154719 44335589 133006767 399020301