Search a number
-
+
131140748 = 2232785187
BaseRepresentation
bin1111101000100…
…00110010001100
3100010202122021202
413310100302030
5232033000443
621002445032
73151451354
oct764206214
9303678252
10131140748
1168030a92
1237b03778
1321227a9b
14135b9b64
15b7a67b8
hex7d10c8c

131140748 has 6 divisors (see below), whose sum is σ = 229496316. Its totient is φ = 65570372.

The previous prime is 131140741. The next prime is 131140753. The reversal of 131140748 is 847041131.

It is a self number, because there is not a number n which added to its sum of digits gives 131140748.

It is not an unprimeable number, because it can be changed into a prime (131140741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16392590 + ... + 16392597.

It is an arithmetic number, because the mean of its divisors is an integer number (38249386).

Almost surely, 2131140748 is an apocalyptic number.

It is an amenable number.

131140748 is a deficient number, since it is larger than the sum of its proper divisors (98355568).

131140748 is a wasteful number, since it uses less digits than its factorization.

131140748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32785191 (or 32785189 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 131140748 is about 11451.6700965405. The cubic root of 131140748 is about 508.0571318554.

Adding to 131140748 its reverse (847041131), we get a palindrome (978181879).

The spelling of 131140748 in words is "one hundred thirty-one million, one hundred forty thousand, seven hundred forty-eight".

Divisors: 1 2 4 32785187 65570374 131140748