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30000046 = 219975377
BaseRepresentation
bin111001001110…
…0001110101110
32002110011022211
41302130032232
530140000141
62551001034
7512665456
oct162341656
962404284
1030000046
1115a3052a
12a06917a
1362a500b
143dacd66
152978d81
hex1c9c3ae

30000046 has 8 divisors (see below), whose sum is σ = 45226800. Its totient is φ = 14924448.

The previous prime is 30000041. The next prime is 30000049. The reversal of 30000046 is 64000003.

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

It is a junction number, because it is equal to n+sod(n) for n = 29999990 and 30000035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37291 + ... + 38086.

It is an arithmetic number, because the mean of its divisors is an integer number (5653350).

Almost surely, 230000046 is an apocalyptic number.

30000046 is a deficient number, since it is larger than the sum of its proper divisors (15226754).

30000046 is a wasteful number, since it uses less digits than its factorization.

30000046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75578.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30000046 is about 5477.2297742563. The cubic root of 30000046 is about 310.7234094094.

Adding to 30000046 its reverse (64000003), we get a palindrome (94000049).

The spelling of 30000046 in words is "thirty million, forty-six", and thus it is an aban number, an eban number, and an uban number.

Divisors: 1 2 199 398 75377 150754 15000023 30000046