Search a number
-
+
126701731541 = 7111918615063
BaseRepresentation
bin111011000000000000…
…0101111111011010101
3110010001001122211212202
41312000000233323111
54033441120402131
6134112253454245
712103533643220
oct1660000577325
9403031584782
10126701731541
1149808908230
12206801a1385
13bc4277a6a8
1461bd4205b7
153468503bcb
hex1d8002fed5

126701731541 has 16 divisors (see below), whose sum is σ = 158792859648. Its totient is φ = 98211706800.

The previous prime is 126701731451. The next prime is 126701731543. The reversal of 126701731541 is 145137107621.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-126701731541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126701731495 and 126701731504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126701731543) 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, 4292825 + ... + 4322238.

It is an arithmetic number, because the mean of its divisors is an integer number (9924553728).

Almost surely, 2126701731541 is an apocalyptic number.

126701731541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126701731541 is a deficient number, since it is larger than the sum of its proper divisors (32091128107).

126701731541 is a wasteful number, since it uses less digits than its factorization.

126701731541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8615272.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 126701731541 in words is "one hundred twenty-six billion, seven hundred one million, seven hundred thirty-one thousand, five hundred forty-one".

Divisors: 1 7 11 77 191 1337 2101 14707 8615063 60305441 94765693 663359851 1645477033 11518339231 18100247363 126701731541