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30030875186 = 2131721671141
BaseRepresentation
bin11011111101111110…
…101100101000110010
32212111220101112011112
4123331332230220302
5443000401001221
621443533513322
72112123140654
oct337576545062
985456345145
1030030875186
1111810712014
1259a1342842
132aa78b5540
14164c5a46d4
15bab6c715b
hex6fdfaca32

30030875186 has 16 divisors (see below), whose sum is σ = 48539674008. Its totient is φ = 13852329600.

The previous prime is 30030875137. The next prime is 30030875191. The reversal of 30030875186 is 68157803003.

It can be written as a sum of positive squares in 4 ways, for example, as 18098589961 + 11932285225 = 134531^2 + 109235^2 .

It is a super-2 number, since 2×300308751862 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290825 + ... + 380316.

Almost surely, 230030875186 is an apocalyptic number.

30030875186 is a deficient number, since it is larger than the sum of its proper divisors (18508798822).

30030875186 is a wasteful number, since it uses less digits than its factorization.

30030875186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672877.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 30030875186 in words is "thirty billion, thirty million, eight hundred seventy-five thousand, one hundred eighty-six".

Divisors: 1 2 13 26 1721 3442 22373 44746 671141 1342282 8724833 17449666 1155033661 2310067322 15015437593 30030875186