Search a number
-
+
130029877 = 373514321
BaseRepresentation
bin1111100000000…
…01100100110101
3100001200012110101
413300001210311
5231241424002
620522554101
73136143565
oct760014465
9301605411
10130029877
116744240a
1237668931
1320c29273
14133aada5
15b637587
hex7c01935

130029877 has 4 divisors (see below), whose sum is σ = 133544236. Its totient is φ = 126515520.

The previous prime is 130029869. The next prime is 130029929. The reversal of 130029877 is 778920031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45279441 + 84750436 = 6729^2 + 9206^2 .

It is a cyclic number.

It is not a de Polignac number, because 130029877 - 23 = 130029869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 3514321 = 130029877 / (1 + 3 + 0 + 0 + 2 + 9 + 8 + 7 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130029817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757124 + ... + 1757197.

It is an arithmetic number, because the mean of its divisors is an integer number (33386059).

Almost surely, 2130029877 is an apocalyptic number.

It is an amenable number.

130029877 is a deficient number, since it is larger than the sum of its proper divisors (3514359).

130029877 is an equidigital number, since it uses as much as digits as its factorization.

130029877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514358.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 130029877 is about 11403.0643688440. The cubic root of 130029877 is about 506.6185068394.

The spelling of 130029877 in words is "one hundred thirty million, twenty-nine thousand, eight hundred seventy-seven".

Divisors: 1 37 3514321 130029877