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381214461 = 3196687973
BaseRepresentation
bin10110101110001…
…101111011111101
3222120022200221010
4112232031323331
51240042330321
6101454425433
712306161265
oct2656157375
9876280833
10381214461
11186205081
12a7802279
1360c94bb4
14388b47a5
1523702676
hex16b8defd

381214461 has 8 divisors (see below), whose sum is σ = 535037920. Its totient is φ = 240766992.

The previous prime is 381214459. The next prime is 381214469. The reversal of 381214461 is 164412183.

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

It is not a de Polignac number, because 381214461 - 21 = 381214459 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381214469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3343930 + ... + 3344043.

It is an arithmetic number, because the mean of its divisors is an integer number (66879740).

Almost surely, 2381214461 is an apocalyptic number.

It is an amenable number.

381214461 is a deficient number, since it is larger than the sum of its proper divisors (153823459).

381214461 is a wasteful number, since it uses less digits than its factorization.

381214461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6687995.

The product of its digits is 4608, while the sum is 30.

The square root of 381214461 is about 19524.7141080222. The cubic root of 381214461 is about 725.0864493029.

The spelling of 381214461 in words is "three hundred eighty-one million, two hundred fourteen thousand, four hundred sixty-one".

Divisors: 1 3 19 57 6687973 20063919 127071487 381214461