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30141258 = 23719107353
BaseRepresentation
bin111001011111…
…0101101001010
32002201100000220
41302332231022
530204010013
62554010510
7514124250
oct162765512
962640026
1030141258
1116017634
12a116a36
136324384
1440085d0
1529a5b23
hex1cbeb4a

30141258 has 64 divisors (see below), whose sum is σ = 73405440. Its totient is φ = 8059392.

The previous prime is 30141253. The next prime is 30141263. The reversal of 30141258 is 85214103.

It is an interprime number because it is at equal distance from previous prime (30141253) and next prime (30141263).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (30141253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85210 + ... + 85562.

It is an arithmetic number, because the mean of its divisors is an integer number (1146960).

Almost surely, 230141258 is an apocalyptic number.

30141258 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30141258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36702720).

30141258 is an abundant number, since it is smaller than the sum of its proper divisors (43264182).

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

30141258 is a wasteful number, since it uses less digits than its factorization.

30141258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 30141258 is about 5490.1054634679. The cubic root of 30141258 is about 311.2101776442.

The spelling of 30141258 in words is "thirty million, one hundred forty-one thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 107 114 133 214 266 321 353 399 642 706 749 798 1059 1498 2033 2118 2247 2471 4066 4494 4942 6099 6707 7413 12198 13414 14231 14826 20121 28462 37771 40242 42693 46949 75542 85386 93898 113313 140847 226626 264397 281694 528794 717649 793191 1435298 1586382 2152947 4305894 5023543 10047086 15070629 30141258