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378897379 = 7107505871
BaseRepresentation
bin10110100101011…
…000001111100011
3222101221222111021
4112211120033203
51233444204004
6101333030311
712250401040
oct2645301743
9871858437
10378897379
11184972233
12a6a85397
1360663343
14384701c7
15233e5d54
hex169583e3

378897379 has 8 divisors (see below), whose sum is σ = 437073408. Its totient is φ = 321733320.

The previous prime is 378897367. The next prime is 378897391. The reversal of 378897379 is 973798873.

It is an interprime number because it is at equal distance from previous prime (378897367) and next prime (378897391).

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

It is a cyclic number.

It is not a de Polignac number, because 378897379 - 219 = 378373091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378897319) 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, 252187 + ... + 253684.

It is an arithmetic number, because the mean of its divisors is an integer number (54634176).

Almost surely, 2378897379 is an apocalyptic number.

378897379 is a deficient number, since it is larger than the sum of its proper divisors (58176029).

378897379 is a wasteful number, since it uses less digits than its factorization.

378897379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505985.

The product of its digits is 16003008, while the sum is 61.

The square root of 378897379 is about 19465.2865121477. The cubic root of 378897379 is about 723.6143993030.

The spelling of 378897379 in words is "three hundred seventy-eight million, eight hundred ninety-seven thousand, three hundred seventy-nine".

Divisors: 1 7 107 749 505871 3541097 54128197 378897379