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30030173187 = 374093349379
BaseRepresentation
bin11011111101111100…
…000001010000000011
32212111212001212012120
4123331330001100003
5443000211020222
621443510455323
72112114155220
oct337574012003
985455055176
1030030173187
1111810282653
1259a1064543
132aa76cab61
14164c460947
15bab5d915c
hex6fdf01403

30030173187 has 16 divisors (see below), whose sum is σ = 45771575040. Its totient is φ = 17155857312.

The previous prime is 30030173183. The next prime is 30030173197. The reversal of 30030173187 is 78137103003.

It is not a de Polignac number, because 30030173187 - 22 = 30030173183 is a prime.

It is a super-2 number, since 2×300301731872 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30030173183) 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 15 ways as a sum of consecutive naturals, for example, 88737 + ... + 260642.

It is an arithmetic number, because the mean of its divisors is an integer number (2860723440).

Almost surely, 230030173187 is an apocalyptic number.

30030173187 is a deficient number, since it is larger than the sum of its proper divisors (15741401853).

30030173187 is a wasteful number, since it uses less digits than its factorization.

30030173187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353482.

The product of its (nonzero) digits is 10584, while the sum is 33.

The spelling of 30030173187 in words is "thirty billion, thirty million, one hundred seventy-three thousand, one hundred eighty-seven".

Divisors: 1 3 7 21 4093 12279 28651 85953 349379 1048137 2445653 7336959 1430008247 4290024741 10010057729 30030173187