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8638270234 = 211392648647
BaseRepresentation
bin10000000101110000…
…11000101100011010
3211022000102121001121
420002320120230122
5120142344121414
63545100035454
7424031041216
oct100270305432
924260377047
108638270234
113733095310
121810b32b8a
13a7884b109
145bd373946
15358577724
hex202e18b1a

8638270234 has 8 divisors (see below), whose sum is σ = 14135351328. Its totient is φ = 3926486460.

The previous prime is 8638270189. The next prime is 8638270271. The reversal of 8638270234 is 4320728368.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×86382702342 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196324302 + ... + 196324345.

It is an arithmetic number, because the mean of its divisors is an integer number (1766918916).

Almost surely, 28638270234 is an apocalyptic number.

8638270234 is a deficient number, since it is larger than the sum of its proper divisors (5497081094).

8638270234 is a wasteful number, since it uses less digits than its factorization.

8638270234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392648660.

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 8638270234 is about 92942.2951836246. The cubic root of 8638270234 is about 2051.8341889904.

It can be divided in two parts, 8638 and 270234, that added together give a palindrome (278872).

The spelling of 8638270234 in words is "eight billion, six hundred thirty-eight million, two hundred seventy thousand, two hundred thirty-four".

Divisors: 1 2 11 22 392648647 785297294 4319135117 8638270234