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42115130 = 254211513
BaseRepresentation
bin1010000010101…
…0000000111010
32221020200002122
42200222000322
541240141010
64102401242
71020654431
oct240520072
987220078
1042115130
11218557a2
1212130222
1389574c5
145844118
153a6d855
hex282a03a

42115130 has 8 divisors (see below), whose sum is σ = 75807252. Its totient is φ = 16846048.

The previous prime is 42115127. The next prime is 42115133. The reversal of 42115130 is 3151124.

It is an interprime number because it is at equal distance from previous prime (42115127) and next prime (42115133).

It can be written as a sum of positive squares in 2 ways, for example, as 34656769 + 7458361 = 5887^2 + 2731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42115099 and 42115108.

It is not an unprimeable number, because it can be changed into a prime (42115133) 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, 2105747 + ... + 2105766.

Almost surely, 242115130 is an apocalyptic number.

42115130 is a deficient number, since it is larger than the sum of its proper divisors (33692122).

42115130 is a wasteful number, since it uses less digits than its factorization.

42115130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211520.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 42115130 is about 6489.6170919400. The cubic root of 42115130 is about 347.9199897532.

Adding to 42115130 its reverse (3151124), we get a palindrome (45266254).

It can be divided in two parts, 421 and 15130, that added together give a palindrome (15551).

The spelling of 42115130 in words is "forty-two million, one hundred fifteen thousand, one hundred thirty".

Divisors: 1 2 5 10 4211513 8423026 21057565 42115130