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390465416 = 23115383719
BaseRepresentation
bin10111010001100…
…000011110001000
31000012201200212002
4113101200132020
51244424343131
6102425010132
712450621065
oct2721403610
91005650762
10390465416
111904534a0
12aa923948
1362b83833
1439c01c6c
152442d6cb
hex17460788

390465416 has 32 divisors (see below), whose sum is σ = 813758400. Its totient is φ = 174133440.

The previous prime is 390465407. The next prime is 390465421. The reversal of 390465416 is 614564093.

It is a super-3 number, since 3×3904654163 (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 390465416.

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, 37196 + ... + 46523.

It is an arithmetic number, because the mean of its divisors is an integer number (25429950).

Almost surely, 2390465416 is an apocalyptic number.

It is an amenable number.

390465416 is an abundant number, since it is smaller than the sum of its proper divisors (423292984).

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

390465416 is a wasteful number, since it uses less digits than its factorization.

390465416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83789 (or 83785 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 390465416 is about 19760.1977722896. The cubic root of 390465416 is about 730.9048740187.

The spelling of 390465416 in words is "three hundred ninety million, four hundred sixty-five thousand, four hundred sixteen".

Divisors: 1 2 4 8 11 22 44 53 88 106 212 424 583 1166 2332 4664 83719 167438 334876 669752 920909 1841818 3683636 4437107 7367272 8874214 17748428 35496856 48808177 97616354 195232708 390465416