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3130352421 = 37473171583
BaseRepresentation
bin1011101010010101…
…0110001100100101
322002011022101020120
42322211112030211
522402332234141
61234342152153
7140400361620
oct27245261445
98064271216
103130352421
111367003119
12734422659
133ab6c4551
14219a58db7
15134c41c66
hexba956325

3130352421 has 16 divisors (see below), whose sum is σ = 4871553024. Its totient is φ = 1750713264.

The previous prime is 3130352389. The next prime is 3130352431. The reversal of 3130352421 is 1242530313.

3130352421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3130352421 - 25 = 3130352389 is a prime.

It is a super-2 number, since 2×31303524212 = 19598212559321122482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3130352391 and 3130352400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130352431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1584805 + ... + 1586778.

It is an arithmetic number, because the mean of its divisors is an integer number (304472064).

Almost surely, 23130352421 is an apocalyptic number.

It is an amenable number.

3130352421 is a deficient number, since it is larger than the sum of its proper divisors (1741200603).

3130352421 is a wasteful number, since it uses less digits than its factorization.

3130352421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171640.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 3130352421 is about 55949.5524646981. The cubic root of 3130352421 is about 1462.8430902870.

Adding to 3130352421 its reverse (1242530313), we get a palindrome (4372882734).

The spelling of 3130352421 in words is "three billion, one hundred thirty million, three hundred fifty-two thousand, four hundred twenty-one".

Divisors: 1 3 7 21 47 141 329 987 3171583 9514749 22201081 66603243 149064401 447193203 1043450807 3130352421