Search a number
-
+
126886541 = 1931721067
BaseRepresentation
bin1111001000000…
…10001010001101
322211202111121112
413210002022031
5224440332131
620331341405
73100342415
oct744021215
9284674545
10126886541
1165695811
12365b1865
13203985c2
1412bcd645
15b21602b
hex790228d

126886541 has 8 divisors (see below), whose sum is σ = 133992480. Its totient is φ = 119823408.

The previous prime is 126886531. The next prime is 126886549. The reversal of 126886541 is 145688621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126886541 - 222 = 122692237 is a prime.

It is a super-2 number, since 2×1268865412 = 32200388573889362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126886549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4511 + ... + 16556.

It is an arithmetic number, because the mean of its divisors is an integer number (16749060).

Almost surely, 2126886541 is an apocalyptic number.

It is an amenable number.

126886541 is a deficient number, since it is larger than the sum of its proper divisors (7105939).

126886541 is a wasteful number, since it uses less digits than its factorization.

126886541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21403.

The product of its digits is 92160, while the sum is 41.

The square root of 126886541 is about 11264.3926156717. The cubic root of 126886541 is about 502.5028386926.

The spelling of 126886541 in words is "one hundred twenty-six million, eight hundred eighty-six thousand, five hundred forty-one".

Divisors: 1 19 317 6023 21067 400273 6678239 126886541