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2127202690 = 251743290999
BaseRepresentation
bin111111011001010…
…1000100110000010
312111020201002111211
41332302220212002
513324030441230
6551025200334
7103466632054
oct17662504602
95436632454
102127202690
119a1828958
124b44900aa
1327b923822
1416272b8d4
15c6b3c42a
hex7eca8982

2127202690 has 32 divisors (see below), whose sum is σ = 4148496000. Its totient is φ = 782202624.

The previous prime is 2127202687. The next prime is 2127202691. The reversal of 2127202690 is 962027212.

It is a super-2 number, since 2×21272026902 = 9049982568686472200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2127202691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138190 + ... + 152809.

It is an arithmetic number, because the mean of its divisors is an integer number (129640500).

Almost surely, 22127202690 is an apocalyptic number.

2127202690 is a deficient number, since it is larger than the sum of its proper divisors (2021293310).

2127202690 is a wasteful number, since it uses less digits than its factorization.

2127202690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291066.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 2127202690 is about 46121.6076259274. The cubic root of 2127202690 is about 1286.0848565400.

The spelling of 2127202690 in words is "two billion, one hundred twenty-seven million, two hundred two thousand, six hundred ninety".

Divisors: 1 2 5 10 17 34 43 85 86 170 215 430 731 1462 3655 7310 290999 581998 1454995 2909990 4946983 9893966 12512957 24734915 25025914 49469830 62564785 125129570 212720269 425440538 1063601345 2127202690