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3130040261 = 23225160457
BaseRepresentation
bin1011101010010000…
…1001111111000101
322002010201112001002
42322210021333011
522402242242021
61234331343045
7140364621545
oct27244117705
98063645032
103130040261
11136690a637
127342b1a85
133ab61543a
142199b7325
15134bce50b
hexba909fc5

3130040261 has 8 divisors (see below), whose sum is σ = 3267633984. Its totient is φ = 2992572000.

The previous prime is 3130040227. The next prime is 3130040269. The reversal of 3130040261 is 1620400313.

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

It is a cyclic number.

It is not a de Polignac number, because 3130040261 - 218 = 3129778117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130040269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21545 + ... + 82001.

It is an arithmetic number, because the mean of its divisors is an integer number (408454248).

Almost surely, 23130040261 is an apocalyptic number.

It is an amenable number.

3130040261 is a deficient number, since it is larger than the sum of its proper divisors (137593723).

3130040261 is a wasteful number, since it uses less digits than its factorization.

3130040261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62731.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3130040261 is about 55946.7627392327. The cubic root of 3130040261 is about 1462.7944635706.

Adding to 3130040261 its reverse (1620400313), we get a palindrome (4750440574).

The spelling of 3130040261 in words is "three billion, one hundred thirty million, forty thousand, two hundred sixty-one".

Divisors: 1 23 2251 51773 60457 1390511 136088707 3130040261