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378505466 = 21271490179
BaseRepresentation
bin10110100011111…
…000100011111010
3222101020001212222
4112203320203322
51233344133331
6101320404042
712244146323
oct2643704372
9871201788
10378505466
11184724839
12a6916622
1360556b41
14383ab44a
1523369b7b
hex168f88fa

378505466 has 8 divisors (see below), whose sum is σ = 572229120. Its totient is φ = 187762428.

The previous prime is 378505453. The next prime is 378505469. The reversal of 378505466 is 664505873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (378505469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744836 + ... + 745343.

It is an arithmetic number, because the mean of its divisors is an integer number (71528640).

Almost surely, 2378505466 is an apocalyptic number.

378505466 is a deficient number, since it is larger than the sum of its proper divisors (193723654).

378505466 is a wasteful number, since it uses less digits than its factorization.

378505466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490308.

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 378505466 is about 19455.2169353107. The cubic root of 378505466 is about 723.3648227329.

The spelling of 378505466 in words is "three hundred seventy-eight million, five hundred five thousand, four hundred sixty-six".

Divisors: 1 2 127 254 1490179 2980358 189252733 378505466