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1013388385 = 5474312291
BaseRepresentation
bin111100011001110…
…001010001100001
32121121212110112011
4330121301101201
54033411412020
6244320232521
734053442042
oct7431612141
92547773464
101013388385
11480038769
1224346b741
13131c470c9
14988348c9
155de7835a
hex3c671461

1013388385 has 8 divisors (see below), whose sum is σ = 1241940096. Its totient is φ = 793461360.

The previous prime is 1013388373. The next prime is 1013388401. The reversal of 1013388385 is 5838833101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1013388385 - 223 = 1004999777 is a prime.

It is a Duffinian 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, 2155911 + ... + 2156380.

It is an arithmetic number, because the mean of its divisors is an integer number (155242512).

Almost surely, 21013388385 is an apocalyptic number.

It is an amenable number.

1013388385 is a deficient number, since it is larger than the sum of its proper divisors (228551711).

1013388385 is an equidigital number, since it uses as much as digits as its factorization.

1013388385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312343.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1013388385 is about 31833.7617161403. The cubic root of 1013388385 is about 1004.4430252905.

The spelling of 1013388385 in words is "one billion, thirteen million, three hundred eighty-eight thousand, three hundred eighty-five".

Divisors: 1 5 47 235 4312291 21561455 202677677 1013388385