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385180706 = 21371405769
BaseRepresentation
bin10110111101010…
…110010000100010
3222211210012121002
4112331112100202
51242101240311
6102115432002
712354660551
oct2675262042
9884705532
10385180706
11188473a69
12a8bb5602
1361a532a1
1439227d98
1523c3793b
hex16f56422

385180706 has 8 divisors (see below), whose sum is σ = 581988780. Its totient is φ = 191184448.

The previous prime is 385180703. The next prime is 385180717. The reversal of 385180706 is 607081583.

It can be written as a sum of positive squares in 2 ways, for example, as 378652681 + 6528025 = 19459^2 + 2555^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 385180706.

It is not an unprimeable number, because it can be changed into a prime (385180703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702611 + ... + 703158.

Almost surely, 2385180706 is an apocalyptic number.

385180706 is a deficient number, since it is larger than the sum of its proper divisors (196808074).

385180706 is a wasteful number, since it uses less digits than its factorization.

385180706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405908.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 385180706 is about 19626.0211454080. The cubic root of 385180706 is about 727.5924350454.

The spelling of 385180706 in words is "three hundred eighty-five million, one hundred eighty thousand, seven hundred six".

Divisors: 1 2 137 274 1405769 2811538 192590353 385180706