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2087668730 = 257136721817
BaseRepresentation
bin111110001101111…
…0100101111111010
312101111022120010002
41330123310233322
513233420344410
6543053553002
7102506614520
oct17433645772
95344276102
102087668730
11981486464
124a31a5762
13273691154
1415b39a310
15c342d7a5
hex7c6f4bfa

2087668730 has 32 divisors (see below), whose sum is σ = 4297971456. Its totient is φ = 715215744.

The previous prime is 2087668717. The next prime is 2087668753. The reversal of 2087668730 is 378667802.

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, 84782 + ... + 106598.

It is an arithmetic number, because the mean of its divisors is an integer number (134311608).

Almost surely, 22087668730 is an apocalyptic number.

2087668730 is an abundant number, since it is smaller than the sum of its proper divisors (2210302726).

2087668730 is a wasteful number, since it uses less digits than its factorization.

2087668730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23198.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 2087668730 is about 45691.0136678975. The cubic root of 2087668730 is about 1278.0677082539.

The spelling of 2087668730 in words is "two billion, eighty-seven million, six hundred sixty-eight thousand, seven hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 1367 2734 6835 9569 13670 19138 21817 43634 47845 95690 109085 152719 218170 305438 763595 1527190 29823839 59647678 149119195 208766873 298238390 417533746 1043834365 2087668730