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2115215234 = 211491195817
BaseRepresentation
bin111111000010011…
…1001111110000010
312110102011001210222
41332010321332002
513312443341414
6545520223042
7103263014156
oct17604717602
95412131728
102115215234
11995a90570
124b046aa82
132792b7462
14160ccb066
15c5a7068e
hex7e139f82

2115215234 has 16 divisors (see below), whose sum is σ = 3468328416. Its totient is φ = 959498400.

The previous prime is 2115215233. The next prime is 2115215239. The reversal of 2115215234 is 4325125112.

It is a super-2 number, since 2×21152152342 = 8948270972291349512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2115215233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87107 + ... + 108710.

It is an arithmetic number, because the mean of its divisors is an integer number (216770526).

Almost surely, 22115215234 is an apocalyptic number.

2115215234 is a deficient number, since it is larger than the sum of its proper divisors (1353113182).

2115215234 is a wasteful number, since it uses less digits than its factorization.

2115215234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196321.

The product of its digits is 2400, while the sum is 26.

The square root of 2115215234 is about 45991.4691437445. The cubic root of 2115215234 is about 1283.6644734432.

The spelling of 2115215234 in words is "two billion, one hundred fifteen million, two hundred fifteen thousand, two hundred thirty-four".

Divisors: 1 2 11 22 491 982 5401 10802 195817 391634 2153987 4307974 96146147 192292294 1057607617 2115215234