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12396122254 = 2174731124943
BaseRepresentation
bin10111000101101110…
…11101000010001110
31011222220111020221001
423202313131002032
5200341401403004
65410015530514
7616121205055
oct134267350216
934886436831
1012396122254
11529131913a
12249b529a3a
1312272490a9
1485849339c
154c841a1a4
hex2e2ddd08e

12396122254 has 32 divisors (see below), whose sum is σ = 20172312576. Its totient is φ = 5690766720.

The previous prime is 12396122243. The next prime is 12396122257. The reversal of 12396122254 is 45222169321.

It is a super-2 number, since 2×123961222542 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12396122257) 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, 484507 + ... + 509449.

It is an arithmetic number, because the mean of its divisors is an integer number (630384768).

Almost surely, 212396122254 is an apocalyptic number.

12396122254 is a deficient number, since it is larger than the sum of its proper divisors (7776190322).

12396122254 is a wasteful number, since it uses less digits than its factorization.

12396122254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25320.

The product of its digits is 51840, while the sum is 37.

The spelling of 12396122254 in words is "twelve billion, three hundred ninety-six million, one hundred twenty-two thousand, two hundred fifty-four".

Divisors: 1 2 17 34 47 94 311 622 799 1598 5287 10574 14617 24943 29234 49886 248489 424031 496978 848062 1172321 2344642 7757273 15514546 19929457 39858914 131873641 263747282 364591831 729183662 6198061127 12396122254