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385073615 = 5372081479
BaseRepresentation
bin10110111100111…
…100000111001111
3222211120202200202
4112330330013033
51242034323430
6102113244115
712354033413
oct2674740717
9884522622
10385073615
11188400563
12a8b6363b
1361a16614
14391dad43
1523c15d45
hex16f3c1cf

385073615 has 8 divisors (see below), whose sum is σ = 474577440. Its totient is φ = 299732832.

The previous prime is 385073609. The next prime is 385073621. The reversal of 385073615 is 516370583.

It is an interprime number because it is at equal distance from previous prime (385073609) and next prime (385073621).

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 385073615 - 222 = 380879311 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040555 + ... + 1040924.

It is an arithmetic number, because the mean of its divisors is an integer number (59322180).

Almost surely, 2385073615 is an apocalyptic number.

385073615 is a deficient number, since it is larger than the sum of its proper divisors (89503825).

385073615 is a wasteful number, since it uses less digits than its factorization.

385073615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081521.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 385073615 is about 19623.2926645861. The cubic root of 385073615 is about 727.5249984521.

The spelling of 385073615 in words is "three hundred eighty-five million, seventy-three thousand, six hundred fifteen".

Divisors: 1 5 37 185 2081479 10407395 77014723 385073615