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38302853421 = 37291732111723
BaseRepresentation
bin100011101011000001…
…110010100100101101
310122212101120120001210
4203223001302210231
51111421012302141
625332431025033
72524115611410
oct435301624455
9118771516053
1038302853421
1115275a64768
12750b66b179
1337c5594a11
141bd5029b77
15ee29e8916
hex8eb07292d

38302853421 has 64 divisors (see below), whose sum is σ = 61051115520. Its totient is φ = 20898743040.

The previous prime is 38302853377. The next prime is 38302853429. The reversal of 38302853421 is 12435820383.

It is not a de Polignac number, because 38302853421 - 211 = 38302851373 is a prime.

It is a super-3 number, since 3×383028534213 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 38302853421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38302853429) 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 in 63 ways as a sum of consecutive naturals, for example, 22229466 + ... + 22231188.

It is an arithmetic number, because the mean of its divisors is an integer number (953923680).

Almost surely, 238302853421 is an apocalyptic number.

It is an amenable number.

38302853421 is a deficient number, since it is larger than the sum of its proper divisors (22748262099).

38302853421 is a wasteful number, since it uses less digits than its factorization.

38302853421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 38302853421 in words is "thirty-eight billion, three hundred two million, eight hundred fifty-three thousand, four hundred twenty-one".

Divisors: 1 3 7 21 29 87 173 203 211 519 609 633 1211 1477 1723 3633 4431 5017 5169 6119 12061 15051 18357 35119 36183 36503 42833 49967 105357 109509 128499 149901 255521 298079 349769 363553 766563 894237 1049307 1058587 1090659 2086553 2544871 3175761 6259659 7410109 7634613 8644291 10543037 22230327 25932873 31629111 60510037 62894669 73801259 181530111 188684007 221403777 440262683 1320788049 1823945401 5471836203 12767617807 38302853421