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3145863385 = 57711265941
BaseRepresentation
bin1011101110000010…
…0001000011011001
322010020111102021201
42323200201003121
522420320112020
61240054434201
7140646253240
oct27340410331
98106442251
103145863385
1113748377a5
12739662961
133b1995632
1421bb35957
151362a7a0a
hexbb8210d9

3145863385 has 16 divisors (see below), whose sum is σ = 4375095552. Its totient is φ = 2126779200.

The previous prime is 3145863337. The next prime is 3145863401. The reversal of 3145863385 is 5833685413.

It is not a de Polignac number, because 3145863385 - 27 = 3145863257 is a prime.

It is a Duffinian number.

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, 630486 + ... + 635455.

It is an arithmetic number, because the mean of its divisors is an integer number (273443472).

Almost surely, 23145863385 is an apocalyptic number.

3145863385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3145863385 is a deficient number, since it is larger than the sum of its proper divisors (1229232167).

3145863385 is a wasteful number, since it uses less digits than its factorization.

3145863385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266024.

The product of its digits is 1036800, while the sum is 46.

The square root of 3145863385 is about 56087.9967996719. The cubic root of 3145863385 is about 1465.2552502863.

The spelling of 3145863385 in words is "three billion, one hundred forty-five million, eight hundred sixty-three thousand, three hundred eighty-five".

Divisors: 1 5 7 35 71 355 497 2485 1265941 6329705 8861587 44307935 89881811 449409055 629172677 3145863385