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215310130 = 25723133733
BaseRepresentation
bin11001101010101…
…01111100110010
3120000010212222021
430311111330302
5420104411010
633210502054
75223051220
oct1465257462
9500125867
10215310130
1110059a762
126013492a
13357b7b59
1420849b10
1513d808da
hexcd55f32

215310130 has 32 divisors (see below), whose sum is σ = 462184704. Its totient is φ = 70610496.

The previous prime is 215310119. The next prime is 215310131. The reversal of 215310130 is 31013512.

It is a super-3 number, since 3×2153101303 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (215310131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65257 + ... + 68476.

It is an arithmetic number, because the mean of its divisors is an integer number (14443272).

Almost surely, 2215310130 is an apocalyptic number.

215310130 is an abundant number, since it is smaller than the sum of its proper divisors (246874574).

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

215310130 is a wasteful number, since it uses less digits than its factorization.

215310130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133770.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 215310130 is about 14673.4498329466. The cubic root of 215310130 is about 599.3605502302.

Adding to 215310130 its reverse (31013512), we get a palindrome (246323642).

The spelling of 215310130 in words is "two hundred fifteen million, three hundred ten thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 805 1610 133733 267466 668665 936131 1337330 1872262 3075859 4680655 6151718 9361310 15379295 21531013 30758590 43062026 107655065 215310130