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30302004402 = 2321683444689
BaseRepresentation
bin11100001110001000…
…111110010010110010
32220012210120022112100
4130032020332102302
5444024303120102
621530501041230
72121624534105
oct341610762262
986183508470
1030302004402
111193a76744a
125a580b6216
132b1bb15327
1416765c073c
15bc53d1a1c
hex70e23e4b2

30302004402 has 12 divisors (see below), whose sum is σ = 65654342910. Its totient is φ = 10100668128.

The previous prime is 30302004389. The next prime is 30302004407. The reversal of 30302004402 is 20440020303.

30302004402 is a `hidden beast` number, since 30 + 30 + 200 + 4 + 402 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28865670201 + 1436334201 = 169899^2 + 37899^2 .

It is a super-2 number, since 2×303020044022 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1683444689 = 30302004402 / (3 + 0 + 3 + 0 + 2 + 0 + 0 + 4 + 4 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (30302004407) 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 5 ways as a sum of consecutive naturals, for example, 841722327 + ... + 841722362.

Almost surely, 230302004402 is an apocalyptic number.

30302004402 is an abundant number, since it is smaller than the sum of its proper divisors (35352338508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30302004402 is a wasteful number, since it uses less digits than its factorization.

30302004402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683444697 (or 1683444694 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 30302004402 its reverse (20440020303), we get a palindrome (50742024705).

The spelling of 30302004402 in words is "thirty billion, three hundred two million, four thousand, four hundred two".

Divisors: 1 2 3 6 9 18 1683444689 3366889378 5050334067 10100668134 15151002201 30302004402