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385900471 = 1135081861
BaseRepresentation
bin10111000000000…
…101111110110111
3222220010202221001
4113000011332313
51242242303341
6102143104131
712364046155
oct2700057667
9886122831
10385900471
11188915810
12a92a2047
1361c45a98
14393743d5
1523d2ad31
hex17005fb7

385900471 has 4 divisors (see below), whose sum is σ = 420982344. Its totient is φ = 350818600.

The previous prime is 385900441. The next prime is 385900481. The reversal of 385900471 is 174009583.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 385900471 - 223 = 377511863 is a prime.

It is a super-3 number, since 3×3859004713 (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 385900471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385900441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17540920 + ... + 17540941.

It is an arithmetic number, because the mean of its divisors is an integer number (105245586).

Almost surely, 2385900471 is an apocalyptic number.

385900471 is a deficient number, since it is larger than the sum of its proper divisors (35081873).

385900471 is a wasteful number, since it uses less digits than its factorization.

385900471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35081872.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 385900471 is about 19644.3495947308. The cubic root of 385900471 is about 728.0453564051.

The spelling of 385900471 in words is "three hundred eighty-five million, nine hundred thousand, four hundred seventy-one".

Divisors: 1 11 35081861 385900471