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30386825238 = 23711131502079
BaseRepresentation
bin11100010011001100…
…100010100000010110
32220102201011122211210
4130103030202200112
5444213011401423
621543131042250
72124004516140
oct342314424026
986381148753
1030386825238
1111983630610
125a805a0386
132b33572a83
14168397dc90
15bcca88b93
hex713322816

30386825238 has 64 divisors (see below), whose sum is σ = 76348293120. Its totient is φ = 7832416800.

The previous prime is 30386825221. The next prime is 30386825251. The reversal of 30386825238 is 83252868303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190518 + ... + 311561.

It is an arithmetic number, because the mean of its divisors is an integer number (1192942080).

Almost surely, 230386825238 is an apocalyptic number.

30386825238 is an abundant number, since it is smaller than the sum of its proper divisors (45961467882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30386825238 is a wasteful number, since it uses less digits than its factorization.

30386825238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502233.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 30386825238 in words is "thirty billion, three hundred eighty-six million, eight hundred twenty-five thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 131 154 231 262 393 462 786 917 1441 1834 2751 2882 4323 5502 8646 10087 20174 30261 60522 502079 1004158 1506237 3012474 3514553 5522869 7029106 10543659 11045738 16568607 21087318 33137214 38660083 65772349 77320166 115980249 131544698 197317047 231960498 394634094 460406443 723495839 920812886 1381219329 1446991678 2170487517 2762438658 4340975034 5064470873 10128941746 15193412619 30386825238