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126871706 = 213474
BaseRepresentation
bin1111000111111…
…10100010011010
322211201202021002
413203332202122
5224434343311
620331145002
73100251233
oct743764232
9284652232
10126871706
1165685655
12365a5162
1320391920
1412bc808a
15b21193b
hex78fe89a

126871706 has 20 divisors (see below), whose sum is σ = 209401962. Its totient is φ = 57310296.

The previous prime is 126871699. The next prime is 126871729. The reversal of 126871706 is 607178621.

It can be written as a sum of positive squares in only one way, i.e., 121992025 + 4879681 = 11045^2 + 2209^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126871706.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2699375 + ... + 2699421.

Almost surely, 2126871706 is an apocalyptic number.

126871706 is a deficient number, since it is larger than the sum of its proper divisors (82530256).

126871706 is an frugal number, since it uses more digits than its factorization.

126871706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 126871706 is about 11263.7341055265. The cubic root of 126871706 is about 502.4832544769.

The spelling of 126871706 in words is "one hundred twenty-six million, eight hundred seventy-one thousand, seven hundred six".

Divisors: 1 2 13 26 47 94 611 1222 2209 4418 28717 57434 103823 207646 1349699 2699398 4879681 9759362 63435853 126871706