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385196390 = 25311242569
BaseRepresentation
bin10110111101011…
…010000101100110
3222211211000002222
4112331122011212
51242102241030
6102120032342
712355054355
oct2675320546
9884730088
10385196390
11188484827
12a90026b2
1361a5a477
143922d99c
1523c3c3e5
hex16f5a166

385196390 has 16 divisors (see below), whose sum is σ = 715720320. Its totient is φ = 149108160.

The previous prime is 385196389. The next prime is 385196393. The reversal of 385196390 is 93691583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385196393) 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, 620975 + ... + 621594.

It is an arithmetic number, because the mean of its divisors is an integer number (44732520).

Almost surely, 2385196390 is an apocalyptic number.

385196390 is a deficient number, since it is larger than the sum of its proper divisors (330523930).

385196390 is a wasteful number, since it uses less digits than its factorization.

385196390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242607.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 385196390 is about 19626.4207129064. The cubic root of 385196390 is about 727.6023104144.

The spelling of 385196390 in words is "three hundred eighty-five million, one hundred ninety-six thousand, three hundred ninety".

Divisors: 1 2 5 10 31 62 155 310 1242569 2485138 6212845 12425690 38519639 77039278 192598195 385196390