Search a number
-
+
131377124 = 2232844281
BaseRepresentation
bin1111101010010…
…10011111100100
3100011012122112102
413311022133210
5232113031444
621011511232
73153454454
oct765123744
9304178472
10131377124
116818263a
1237bb8518
13212ab558
141363bd64
15b80184e
hex7d4a7e4

131377124 has 6 divisors (see below), whose sum is σ = 229909974. Its totient is φ = 65688560.

The previous prime is 131377123. The next prime is 131377157. The reversal of 131377124 is 421773131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 121705024 + 9672100 = 11032^2 + 3110^2 .

It is a super-2 number, since 2×1313771242 = 34519897421022752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131377123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16422137 + ... + 16422144.

It is an arithmetic number, because the mean of its divisors is an integer number (38318329).

Almost surely, 2131377124 is an apocalyptic number.

It is an amenable number.

131377124 is a deficient number, since it is larger than the sum of its proper divisors (98532850).

131377124 is a wasteful number, since it uses less digits than its factorization.

131377124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32844285 (or 32844283 counting only the distinct ones).

The product of its digits is 3528, while the sum is 29.

The square root of 131377124 is about 11461.9860408221. The cubic root of 131377124 is about 508.3621995851.

The spelling of 131377124 in words is "one hundred thirty-one million, three hundred seventy-seven thousand, one hundred twenty-four".

Divisors: 1 2 4 32844281 65688562 131377124