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346121031 = 31039111043
BaseRepresentation
bin10100101000010…
…110001101000111
3220010021202210110
4110220112031013
51202101333111
654202324103
711401660134
oct2450261507
9803252713
10346121031
11168415943
1297ab9633
1356928759
1433d7b58b
15205be5a6
hex14a16347

346121031 has 8 divisors (see below), whose sum is σ = 461943040. Its totient is φ = 230523192.

The previous prime is 346121029. The next prime is 346121033. The reversal of 346121031 is 130121643.

It is an interprime number because it is at equal distance from previous prime (346121029) and next prime (346121033).

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

It is not a de Polignac number, because 346121031 - 21 = 346121029 is a prime.

It is a super-2 number, since 2×3461210312 = 239599536201005922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 346120989 and 346121007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346121033) 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 7 ways as a sum of consecutive naturals, for example, 52405 + ... + 58638.

It is an arithmetic number, because the mean of its divisors is an integer number (57742880).

Almost surely, 2346121031 is an apocalyptic number.

346121031 is a deficient number, since it is larger than the sum of its proper divisors (115822009).

346121031 is a wasteful number, since it uses less digits than its factorization.

346121031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112085.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 346121031 is about 18604.3282867187. The cubic root of 346121031 is about 702.1167430296.

Adding to 346121031 its reverse (130121643), we get a palindrome (476242674).

The spelling of 346121031 in words is "three hundred forty-six million, one hundred twenty-one thousand, thirty-one".

Divisors: 1 3 1039 3117 111043 333129 115373677 346121031