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3121140130 = 25312114013
BaseRepresentation
bin1011101000001000…
…1101000110100010
322001111222100100121
42322002031012202
522343002441010
61233412510454
7140226152623
oct27202150642
98044870317
103121140130
111361890859
1273131b42a
133a981a3a4
1421873ba4a
151340223da
hexba08d1a2

3121140130 has 8 divisors (see below), whose sum is σ = 5618052252. Its totient is φ = 1248456048.

The previous prime is 3121140103. The next prime is 3121140131. The reversal of 3121140130 is 310411213.

It can be written as a sum of positive squares in 2 ways, for example, as 3089025241 + 32114889 = 55579^2 + 5667^2 .

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

It is a super-2 number, since 2×31211401302 = 19483031422192833800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3121140131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156056997 + ... + 156057016.

Almost surely, 23121140130 is an apocalyptic number.

3121140130 is a deficient number, since it is larger than the sum of its proper divisors (2496912122).

3121140130 is a wasteful number, since it uses less digits than its factorization.

3121140130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312114020.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3121140130 is about 55867.1650435209. The cubic root of 3121140130 is about 1461.4066835950.

Adding to 3121140130 its reverse (310411213), we get a palindrome (3431551343).

The spelling of 3121140130 in words is "three billion, one hundred twenty-one million, one hundred forty thousand, one hundred thirty".

Divisors: 1 2 5 10 312114013 624228026 1560570065 3121140130