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30050042 = 2111365911
BaseRepresentation
bin111001010100…
…0011011111010
32002112200220112
41302220123322
530143100132
62552024322
7513264311
oct162503372
962480815
1030050042
1115a65050
12a0920a2
1362c19b9
143dc3278
152988ab2
hex1ca86fa

30050042 has 8 divisors (see below), whose sum is σ = 49172832. Its totient is φ = 13659100.

The previous prime is 30049979. The next prime is 30050047. The reversal of 30050042 is 24005003.

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 = 30049999 and 30050026.

It is not an unprimeable number, because it can be changed into a prime (30050047) 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, 682934 + ... + 682977.

It is an arithmetic number, because the mean of its divisors is an integer number (6146604).

Almost surely, 230050042 is an apocalyptic number.

30050042 is a deficient number, since it is larger than the sum of its proper divisors (19122790).

30050042 is a wasteful number, since it uses less digits than its factorization.

30050042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365924.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 30050042 is about 5481.7918603318. The cubic root of 30050042 is about 310.8959236532.

Adding to 30050042 its reverse (24005003), we get a palindrome (54055045).

The spelling of 30050042 in words is "thirty million, fifty thousand, forty-two", and thus it is an eban number.

Divisors: 1 2 11 22 1365911 2731822 15025021 30050042