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12415721230 = 2511247345641
BaseRepresentation
bin10111001000000100…
…01101111100001110
31012001021100222200001
423210002031330032
5200411411034410
65411555554514
7616446613663
oct134402157416
935037328601
1012415721230
1152a1395140
1224a5bbba3a
13122b31bb13
1485ad15a6a
154c9edc33a
hex2e408df0e

12415721230 has 32 divisors (see below), whose sum is σ = 24390354528. Its totient is φ = 4512883200.

The previous prime is 12415721203. The next prime is 12415721243. The reversal of 12415721230 is 3212751421.

It is a super-2 number, since 2×124157212302 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249210 + ... + 294850.

It is an arithmetic number, because the mean of its divisors is an integer number (762198579).

Almost surely, 212415721230 is an apocalyptic number.

12415721230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12415721230 is a deficient number, since it is larger than the sum of its proper divisors (11974633298).

12415721230 is a wasteful number, since it uses less digits than its factorization.

12415721230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48132.

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 12415721230 in words is "twelve billion, four hundred fifteen million, seven hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 2473 4946 12365 24730 27203 45641 54406 91282 136015 228205 272030 456410 502051 1004102 2510255 5020510 112870193 225740386 564350965 1128701930 1241572123 2483144246 6207860615 12415721230