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30388985465966 = 261277899242039
BaseRepresentation
bin1101110100011011111001…
…01011110000110001101110
310222121011021122110211021222
412322031330223300301232
512440343120234402331
6144344301315423342
76254350250322131
oct672157453606156
9128534248424258
1030388985465966
119756995068a66
1234a97098b4b52
1313c5890b3471a
14770b98778218
1537a749711b7b
hex1ba37caf0c6e

30388985465966 has 16 divisors (see below), whose sum is σ = 46498007404320. Its totient is φ = 14891448149280.

The previous prime is 30388985465959. The next prime is 30388985465999. The reversal of 30388985465966 is 66956458988303.

It is a super-2 number, since 2×303889854659662 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 449587226 + ... + 449654813.

It is an arithmetic number, because the mean of its divisors is an integer number (2906125462770).

Almost surely, 230388985465966 is an apocalyptic number.

30388985465966 is a deficient number, since it is larger than the sum of its proper divisors (16109021938354).

30388985465966 is a wasteful number, since it uses less digits than its factorization.

30388985465966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899242379.

The product of its (nonzero) digits is 8062156800, while the sum is 80.

The spelling of 30388985465966 in words is "thirty trillion, three hundred eighty-eight billion, nine hundred eighty-five million, four hundred sixty-five thousand, nine hundred sixty-six".

Divisors: 1 2 61 122 277 554 16897 33794 899242039 1798484078 54853764379 109707528758 249090044803 498180089606 15194492732983 30388985465966