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69618222368 = 25466432
BaseRepresentation
bin100000011010110010…
…0011100010100100000
320122200210222010102022
41000311210130110200
52120034231103433
651552052041012
75013130061222
oct1006544342440
9218623863368
1069618222368
1127585742972
12115ab003168
136746316326
143526036412
151c26d4b698
hex103591c520

69618222368 has 18 divisors (see below), whose sum is σ = 137063813859. Its totient is φ = 34808364896.

The previous prime is 69618222293. The next prime is 69618222371. The reversal of 69618222368 is 86322281696.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 34809111184 + 34809111184 = 186572^2 + 186572^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=186572.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 1469255 + ... + 1515897.

Almost surely, 269618222368 is an apocalyptic number.

It is an amenable number.

69618222368 is a deficient number, since it is larger than the sum of its proper divisors (67445591491).

69618222368 is an frugal number, since it uses more digits than its factorization.

69618222368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93296 (or 46645 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 53.

The spelling of 69618222368 in words is "sixty-nine billion, six hundred eighteen million, two hundred twenty-two thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 16 32 46643 93286 186572 373144 746288 1492576 2175569449 4351138898 8702277796 17404555592 34809111184 69618222368