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126740412 = 2232191271459
BaseRepresentation
bin1111000110111…
…10011110111100
322211111002011100
413203132132330
5224421143122
620324253100
73066163401
oct743363674
9284432140
10126740412
11655a5a47
1236541190
1320346c36
1412b922a8
15b1d7aac
hex78de7bc

126740412 has 72 divisors (see below), whose sum is σ = 340121600. Its totient is φ = 39680928.

The previous prime is 126740401. The next prime is 126740417. The reversal of 126740412 is 214047621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126740417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86139 + ... + 87597.

Almost surely, 2126740412 is an apocalyptic number.

126740412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126740412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170060800).

126740412 is an abundant number, since it is smaller than the sum of its proper divisors (213381188).

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

126740412 is a wasteful number, since it uses less digits than its factorization.

126740412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 1610 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 126740412 is about 11257.9044231153. The cubic root of 126740412 is about 502.3098619764.

The spelling of 126740412 in words is "one hundred twenty-six million, seven hundred forty thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 127 171 228 254 342 381 508 684 762 1143 1459 1524 2286 2413 2918 4377 4572 4826 5836 7239 8754 9652 13131 14478 17508 21717 26262 27721 28956 43434 52524 55442 83163 86868 110884 166326 185293 249489 332652 370586 498978 555879 741172 997956 1111758 1667637 2223516 3335274 3520567 6670548 7041134 10561701 14082268 21123402 31685103 42246804 63370206 126740412