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2107163905 = 57311111697
BaseRepresentation
bin111110110011000…
…1100010100000001
312102212000000110121
41331212030110001
513303413221110
6545031500241
7103134412000
oct17546142401
95385000417
102107163905
11991491480
124a9827681
13277728862
1415dbd2c37
15c4ececda
hex7d98c501

2107163905 has 32 divisors (see below), whose sum is σ = 3216902400. Its totient is φ = 1313544960.

The previous prime is 2107163843. The next prime is 2107163921. The reversal of 2107163905 is 5093617012.

It is not a de Polignac number, because 2107163905 - 215 = 2107131137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36984 + ... + 74713.

It is an arithmetic number, because the mean of its divisors is an integer number (100528200).

Almost surely, 22107163905 is an apocalyptic number.

It is an amenable number.

2107163905 is a deficient number, since it is larger than the sum of its proper divisors (1109738495).

2107163905 is a wasteful number, since it uses less digits than its factorization.

2107163905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111734 (or 111720 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 2107163905 is about 45903.8550124061. The cubic root of 2107163905 is about 1282.0336943936.

The spelling of 2107163905 in words is "two billion, one hundred seven million, one hundred sixty-three thousand, nine hundred five".

Divisors: 1 5 7 11 35 49 55 77 245 343 385 539 1715 2695 3773 18865 111697 558485 781879 1228667 3909395 5473153 6143335 8600669 27365765 38312071 43003345 60204683 191560355 301023415 421432781 2107163905