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2870011387 = 6147049367
BaseRepresentation
bin1010101100010000…
…1110010111111011
321102000102200111001
42223010032113323
521334210331022
61152442145431
7131056460065
oct25304162773
97360380431
102870011387
111243057041
126811b2277
133697a0cb9
141d324a735
1511be68b27
hexab10e5fb

2870011387 has 4 divisors (see below), whose sum is σ = 2917060816. Its totient is φ = 2822961960.

The previous prime is 2870011373. The next prime is 2870011409. The reversal of 2870011387 is 7831100782.

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

It is a cyclic number.

It is not a de Polignac number, because 2870011387 - 211 = 2870009339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2870011687) 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, 23524623 + ... + 23524744.

It is an arithmetic number, because the mean of its divisors is an integer number (729265204).

Almost surely, 22870011387 is an apocalyptic number.

2870011387 is a deficient number, since it is larger than the sum of its proper divisors (47049429).

2870011387 is an equidigital number, since it uses as much as digits as its factorization.

2870011387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47049428.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 2870011387 is about 53572.4872205874. The cubic root of 2870011387 is about 1421.1105817927.

The spelling of 2870011387 in words is "two billion, eight hundred seventy million, eleven thousand, three hundred eighty-seven".

Divisors: 1 61 47049367 2870011387