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12200256142 = 2171672777757
BaseRepresentation
bin10110101110011000…
…10010001010001110
31011111020221020010121
423113030102022032
5144441231144032
65334341455154
7611222315614
oct132714221216
934436836117
1012200256142
1151a07aa018
122445a114ba
1311c57ab599
1483a4696b4
154b612aa97
hex2d731228e

12200256142 has 32 divisors (see below), whose sum is σ = 19565800128. Its totient is φ = 5685582336.

The previous prime is 12200256113. The next prime is 12200256151. The reversal of 12200256142 is 24165200221.

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, 1568928 + ... + 1576684.

It is an arithmetic number, because the mean of its divisors is an integer number (611431254).

Almost surely, 212200256142 is an apocalyptic number.

12200256142 is a deficient number, since it is larger than the sum of its proper divisors (7365543986).

12200256142 is a wasteful number, since it uses less digits than its factorization.

12200256142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8220.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12200256142 its reverse (24165200221), we get a palindrome (36365456363).

The spelling of 12200256142 in words is "twelve billion, two hundred million, two hundred fifty-six thousand, one hundred forty-two".

Divisors: 1 2 17 34 167 277 334 554 2839 4709 5678 7757 9418 15514 46259 92518 131869 263738 786403 1295419 1572806 2148689 2590838 4297378 22022123 36527713 44044246 73055426 358831063 717662126 6100128071 12200256142