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2130164140 = 225138192939
BaseRepresentation
bin111111011110111…
…1011100110101100
312111110021112212011
41332331323212230
513330310223030
6551212451004
7103534045036
oct17675734654
95443245764
102130164140
119a3470935
124b5479a64
1327c41c770
14162c9cc56
15c7024b2a
hex7ef7b9ac

2130164140 has 24 divisors (see below), whose sum is σ = 4817448720. Its totient is φ = 786522048.

The previous prime is 2130164123. The next prime is 2130164177. The reversal of 2130164140 is 414610312.

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, 4096210 + ... + 4096729.

It is an arithmetic number, because the mean of its divisors is an integer number (200727030).

Almost surely, 22130164140 is an apocalyptic number.

2130164140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130164140 is an abundant number, since it is smaller than the sum of its proper divisors (2687284580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2130164140 is a wasteful number, since it uses less digits than its factorization.

2130164140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8192961 (or 8192959 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2130164140 is about 46153.7012600290. The cubic root of 2130164140 is about 1286.6814005251.

Adding to 2130164140 its reverse (414610312), we get a palindrome (2544774452).

It can be divided in two parts, 213016 and 4140, that added together give a square (217156 = 4662).

The spelling of 2130164140 in words is "two billion, one hundred thirty million, one hundred sixty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 8192939 16385878 32771756 40964695 81929390 106508207 163858780 213016414 426032828 532541035 1065082070 2130164140