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378069136 = 2448612
BaseRepresentation
bin10110100010001…
…110000010010000
3222100101220100121
4112202032002100
51233241203021
6101303200024
712240351244
oct2642160220
9870356317
10378069136
11184456a35
12a6746014
1360433363
14382d6424
15232d0741
hex1688e090

378069136 has 15 divisors (see below), whose sum is σ = 732659673. Its totient is φ = 188995680.

The previous prime is 378069121. The next prime is 378069151. The reversal of 378069136 is 631960873.

The square root of 378069136 is 19444.

It is a perfect power (a square), and thus also a powerful number.

378069136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (378069121) and next prime (378069151).

It can be written as a sum of positive squares in only one way, i.e., 347598736 + 30470400 = 18644^2 + 5520^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378069092 and 378069101.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 75346 + ... + 80206.

Almost surely, 2378069136 is an apocalyptic number.

378069136 is the 19444-th square number.

It is an amenable number.

378069136 is a deficient number, since it is larger than the sum of its proper divisors (354590537).

378069136 is an frugal number, since it uses more digits than its factorization.

378069136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9730 (or 4863 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The cubic root of 378069136 is about 723.0867579398.

The spelling of 378069136 in words is "three hundred seventy-eight million, sixty-nine thousand, one hundred thirty-six".

Divisors: 1 2 4 8 16 4861 9722 19444 38888 77776 23629321 47258642 94517284 189034568 378069136