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80217302464 = 2613591634153
BaseRepresentation
bin100101010110101010…
…0101110010111000000
321200001111000011221101
41022231110232113000
52303241112134324
6100503515104144
75536600551325
oct1125524562700
9250044004841
1080217302464
11310246376a2
1213668742054
137745169760
143c4d982b4c
1521475e4944
hex12ad52e5c0

80217302464 has 56 divisors (see below), whose sum is σ = 174331548720. Its totient is φ = 36395833344.

The previous prime is 80217302419. The next prime is 80217302587. The reversal of 80217302464 is 46420371208.

It is a super-2 number, since 2×802173024642 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 767989 + ... + 866164.

It is an arithmetic number, because the mean of its divisors is an integer number (3113063370).

Almost surely, 280217302464 is an apocalyptic number.

It is an amenable number.

80217302464 is an abundant number, since it is smaller than the sum of its proper divisors (94114246256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80217302464 is a wasteful number, since it uses less digits than its factorization.

80217302464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634237 (or 1634227 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 80217302464 in words is "eighty billion, two hundred seventeen million, three hundred two thousand, four hundred sixty-four".

Divisors: 1 2 4 8 13 16 26 32 52 59 64 104 118 208 236 416 472 767 832 944 1534 1888 3068 3776 6136 12272 24544 49088 1634153 3268306 6536612 13073224 21243989 26146448 42487978 52292896 84975956 96415027 104585792 169951912 192830054 339903824 385660108 679807648 771320216 1253395351 1359615296 1542640432 2506790702 3085280864 5013581404 6170561728 10027162808 20054325616 40108651232 80217302464