Search a number
-
+
2107101640 = 23577525363
BaseRepresentation
bin111110110010111…
…1101000111001000
312102211212212001111
41331211331013020
513303404223030
6545030300104
7103134032320
oct17545750710
95384785044
102107101640
11991449716
124a97b7634
13277706407
1415dbb8280
15c4ebb62a
hex7d97d1c8

2107101640 has 32 divisors (see below), whose sum is σ = 5418262080. Its totient is φ = 722434752.

The previous prime is 2107101637. The next prime is 2107101649. The reversal of 2107101640 is 461017012.

It is not an unprimeable number, because it can be changed into a prime (2107101649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3762402 + ... + 3762961.

It is an arithmetic number, because the mean of its divisors is an integer number (169320690).

Almost surely, 22107101640 is an apocalyptic number.

2107101640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2107101640 is an abundant number, since it is smaller than the sum of its proper divisors (3311160440).

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

2107101640 is a wasteful number, since it uses less digits than its factorization.

2107101640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7525381 (or 7525377 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 2107101640 is about 45903.1767963831. The cubic root of 2107101640 is about 1282.0210665807.

Adding to 2107101640 its reverse (461017012), we get a palindrome (2568118652).

The spelling of 2107101640 in words is "two billion, one hundred seven million, one hundred one thousand, six hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 7525363 15050726 30101452 37626815 52677541 60202904 75253630 105355082 150507260 210710164 263387705 301014520 421420328 526775410 1053550820 2107101640