Search a number
-
+
127968061 = 13174391319
BaseRepresentation
bin1111010000010…
…10001100111101
322220210110011211
413220022030331
5230224434221
620410444421
73112465504
oct750121475
9286713154
10127968061
1166264331
1236a33711
1320686960
1412dd183b
15b37b6e1
hex7a0a33d

127968061 has 16 divisors (see below), whose sum is σ = 146361600. Its totient is φ = 110838528.

The previous prime is 127968037. The next prime is 127968073. The reversal of 127968061 is 160869721.

It is a cyclic number.

It is not a de Polignac number, because 127968061 - 27 = 127967933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127968091) 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, 96360 + ... + 97678.

It is an arithmetic number, because the mean of its divisors is an integer number (9147600).

Almost surely, 2127968061 is an apocalyptic number.

It is an amenable number.

127968061 is a deficient number, since it is larger than the sum of its proper divisors (18393539).

127968061 is a wasteful number, since it uses less digits than its factorization.

127968061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 127968061 is about 11312.2968932043. The cubic root of 127968061 is about 503.9264991602.

The spelling of 127968061 in words is "one hundred twenty-seven million, nine hundred sixty-eight thousand, sixty-one".

Divisors: 1 13 17 221 439 1319 5707 7463 17147 22423 97019 291499 579041 7527533 9843697 127968061