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378716137 = 2319186209
BaseRepresentation
bin10110100100101…
…011111111101001
3222101121202212121
4112210223333221
51233422404022
6101325111241
712246014452
oct2644537751
9871552777
10378716137
11184859048
12a69b8521
13605cb9b7
1438424129
15233ac2c7
hex1692bfe9

378716137 has 8 divisors (see below), whose sum is σ = 397255680. Its totient is φ = 360349440.

The previous prime is 378716101. The next prime is 378716161. The reversal of 378716137 is 731617873.

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 378716137 - 227 = 244498409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378716093 and 378716102.

It is not an unprimeable number, because it can be changed into a prime (378716167) 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, 38712 + ... + 47497.

It is an arithmetic number, because the mean of its divisors is an integer number (49656960).

Almost surely, 2378716137 is an apocalyptic number.

It is an amenable number.

378716137 is a deficient number, since it is larger than the sum of its proper divisors (18539543).

378716137 is a wasteful number, since it uses less digits than its factorization.

378716137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86423.

The product of its digits is 148176, while the sum is 43.

The square root of 378716137 is about 19460.6304368589. The cubic root of 378716137 is about 723.4990028526.

The spelling of 378716137 in words is "three hundred seventy-eight million, seven hundred sixteen thousand, one hundred thirty-seven".

Divisors: 1 23 191 4393 86209 1982807 16465919 378716137