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130240038 = 2358736979
BaseRepresentation
bin1111100001101…
…00111000100110
3100002001212202010
413300310320212
5231320140123
620531255050
73141010365
oct760647046
9302055663
10130240038
11675762a5
123774a486
1320ca0b16
14134237dc
15b679993
hex7c34e26

130240038 has 16 divisors (see below), whose sum is σ = 260930880. Its totient is φ = 43338216.

The previous prime is 130239983. The next prime is 130240039. The reversal of 130240038 is 830042031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 130239996 and 130240023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130240039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14968 + ... + 22011.

It is an arithmetic number, because the mean of its divisors is an integer number (16308180).

Almost surely, 2130240038 is an apocalyptic number.

130240038 is an abundant number, since it is smaller than the sum of its proper divisors (130690842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130240038 is a wasteful number, since it uses less digits than its factorization.

130240038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37571.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 130240038 is about 11412.2757590237. The cubic root of 130240038 is about 506.8913009192.

Adding to 130240038 its reverse (830042031), we get a palindrome (960282069).

The spelling of 130240038 in words is "one hundred thirty million, two hundred forty thousand, thirty-eight".