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30535131 = 311925307
BaseRepresentation
bin111010001111…
…0110111011011
32010110100022210
41310132313123
530304111011
63010250203
7520354464
oct164366733
963410283
1030535131
1116266550
12a286963
136431733
1440abd6b
152a326a6
hex1d1eddb

30535131 has 8 divisors (see below), whose sum is σ = 44414784. Its totient is φ = 18506120.

The previous prime is 30535129. The next prime is 30535133. The reversal of 30535131 is 13153503.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30535129) and next prime (30535133).

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 30535131 - 21 = 30535129 is a prime.

It is a super-2 number, since 2×305351312 = 1864788450374322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30535098 and 30535107.

It is not an unprimeable number, because it can be changed into a prime (30535133) 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, 462621 + ... + 462686.

It is an arithmetic number, because the mean of its divisors is an integer number (5551848).

Almost surely, 230535131 is an apocalyptic number.

30535131 is a deficient number, since it is larger than the sum of its proper divisors (13879653).

30535131 is a wasteful number, since it uses less digits than its factorization.

30535131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925321.

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 30535131 is about 5525.8602045292. The cubic root of 30535131 is about 312.5599023301.

Adding to 30535131 its reverse (13153503), we get a palindrome (43688634).

The spelling of 30535131 in words is "thirty million, five hundred thirty-five thousand, one hundred thirty-one".

Divisors: 1 3 11 33 925307 2775921 10178377 30535131