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30120041042 = 2713198710249
BaseRepresentation
bin11100000011010010…
…110101101001010010
32212202010011121201122
4130003102311221102
5443141212303132
621500441002242
72114255060510
oct340322655122
985663147648
1030120041042
1111856a83703
125a07183382
132ac02048c0
14165a3754b0
15bb443b912
hex7034b5a52

30120041042 has 32 divisors (see below), whose sum is σ = 58532880000. Its totient is φ = 11288481408.

The previous prime is 30120041041. The next prime is 30120041173. The reversal of 30120041042 is 24014002103.

It is a self number, because there is not a number n which added to its sum of digits gives 30120041042.

It is not an unprimeable number, because it can be changed into a prime (30120041041) 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, 4351667 + ... + 4358582.

It is an arithmetic number, because the mean of its divisors is an integer number (1829152500).

Almost surely, 230120041042 is an apocalyptic number.

30120041042 is a deficient number, since it is larger than the sum of its proper divisors (28412838958).

30120041042 is a wasteful number, since it uses less digits than its factorization.

30120041042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8710290.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 30120041042 its reverse (24014002103), we get a palindrome (54134043145).

The spelling of 30120041042 in words is "thirty billion, one hundred twenty million, forty-one thousand, forty-two".

Divisors: 1 2 7 13 14 19 26 38 91 133 182 247 266 494 1729 3458 8710249 17420498 60971743 113233237 121943486 165494731 226466474 330989462 792632659 1158463117 1585265318 2151431503 2316926234 4302863006 15060020521 30120041042