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385385502 = 23487131891
BaseRepresentation
bin10110111110001…
…000010000011110
3222212011121112010
4112332020100132
51242124314002
6102124052050
712356502615
oct2676102036
9885147463
10385385502
111885a3917
12a9094026
1361ac5578
143927c87c
1523c7846c
hex16f8841e

385385502 has 16 divisors (see below), whose sum is σ = 772359552. Its totient is φ = 128197080.

The previous prime is 385385501. The next prime is 385385503. The reversal of 385385502 is 205583583.

It is an interprime number because it is at equal distance from previous prime (385385501) and next prime (385385503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385385501) 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, 63024 + ... + 68867.

It is an arithmetic number, because the mean of its divisors is an integer number (48272472).

Almost surely, 2385385502 is an apocalyptic number.

385385502 is an abundant number, since it is smaller than the sum of its proper divisors (386974050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385385502 is a wasteful number, since it uses less digits than its factorization.

385385502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132383.

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 385385502 is about 19631.2379130813. The cubic root of 385385502 is about 727.7213629461.

The spelling of 385385502 in words is "three hundred eighty-five million, three hundred eighty-five thousand, five hundred two".

Divisors: 1 2 3 6 487 974 1461 2922 131891 263782 395673 791346 64230917 128461834 192692751 385385502