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385001635 = 5177362047
BaseRepresentation
bin10110111100101…
…010100010100011
3222211110002221211
4112330222202203
51242030023020
6102111530551
712353313514
oct2674524243
9884402854
10385001635
11188361477
12a8b29a57
13619bc925
14391bca0b
1523bee85a
hex16f2a8a3

385001635 has 16 divisors (see below), whose sum is σ = 495887616. Its totient is φ = 285907968.

The previous prime is 385001627. The next prime is 385001641. The reversal of 385001635 is 536100583.

It is a cyclic number.

It is not a de Polignac number, because 385001635 - 23 = 385001627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 385001597 and 385001606.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24819 + ... + 37228.

It is an arithmetic number, because the mean of its divisors is an integer number (30992976).

Almost surely, 2385001635 is an apocalyptic number.

385001635 is the 12410-th heptagonal number.

385001635 is a deficient number, since it is larger than the sum of its proper divisors (110885981).

385001635 is a wasteful number, since it uses less digits than its factorization.

385001635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62142.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 385001635 is about 19621.4585339622. The cubic root of 385001635 is about 727.4796646851.

The spelling of 385001635 in words is "three hundred eighty-five million, one thousand, six hundred thirty-five".

Divisors: 1 5 17 73 85 365 1241 6205 62047 310235 1054799 4529431 5273995 22647155 77000327 385001635