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385250155 = 5377920389
BaseRepresentation
bin10110111101100…
…111001101101011
3222211220201212021
4112331213031223
51242111001110
6102121125311
712355400203
oct2675471553
9884821767
10385250155
11188511164
12a9029837
1361a78a94
1439245403
1523c4d2da
hex16f6736b

385250155 has 8 divisors (see below), whose sum is σ = 462445200. Its totient is φ = 308103456.

The previous prime is 385250149. The next prime is 385250167. The reversal of 385250155 is 551052583.

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 385250155 - 217 = 385119083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385250155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8701 + ... + 29089.

It is an arithmetic number, because the mean of its divisors is an integer number (57805650).

Almost surely, 2385250155 is an apocalyptic number.

385250155 is a deficient number, since it is larger than the sum of its proper divisors (77195045).

385250155 is a wasteful number, since it uses less digits than its factorization.

385250155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24173.

The product of its (nonzero) digits is 30000, while the sum is 34.

The square root of 385250155 is about 19627.7903748741. The cubic root of 385250155 is about 727.6361613013.

The spelling of 385250155 in words is "three hundred eighty-five million, two hundred fifty thousand, one hundred fifty-five".

Divisors: 1 5 3779 18895 20389 101945 77050031 385250155