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378163049 = 1141853983
BaseRepresentation
bin10110100010100…
…100111101101001
3222100120200011212
4112202210331221
51233302204144
6101305202505
712241222115
oct2642447551
9870520155
10378163049
11184510550
12a6790435
1360467024
143831c745
15232ed49e
hex168a4f69

378163049 has 16 divisors (see below), whose sum is σ = 423529344. Its totient is φ = 334665600.

The previous prime is 378163031. The next prime is 378163067. The reversal of 378163049 is 940361873.

It is an interprime number because it is at equal distance from previous prime (378163031) and next prime (378163067).

It is a cyclic number.

It is not a de Polignac number, because 378163049 - 28 = 378162793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 378162997 and 378163015.

It is not an unprimeable number, because it can be changed into a prime (378163349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384212 + ... + 385194.

It is an arithmetic number, because the mean of its divisors is an integer number (26470584).

Almost surely, 2378163049 is an apocalyptic number.

It is an amenable number.

378163049 is a deficient number, since it is larger than the sum of its proper divisors (45366295).

378163049 is a wasteful number, since it uses less digits than its factorization.

378163049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 378163049 is about 19446.4148109619. The cubic root of 378163049 is about 723.1466249661.

The spelling of 378163049 in words is "three hundred seventy-eight million, one hundred sixty-three thousand, forty-nine".

Divisors: 1 11 41 451 853 983 9383 10813 34973 40303 384703 443333 838499 9223489 34378459 378163049