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80072862534 = 23271933447311
BaseRepresentation
bin100101010010010110…
…1101110101101000110
321122200102012212121100
41022210231232231012
52302442123100114
6100441315200530
75533165046550
oct1124455565506
9248612185540
1080072862534
1130a60052855
12136282a6146
137721266542
143c387044d0
152139ab2909
hex12a4b6eb46

80072862534 has 48 divisors (see below), whose sum is σ = 208711226880. Its totient is φ = 21673856880.

The previous prime is 80072862509. The next prime is 80072862547. The reversal of 80072862534 is 43526827008.

It is a self number, because there is not a number n which added to its sum of digits gives 80072862534.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16721262 + ... + 16726049.

It is an arithmetic number, because the mean of its divisors is an integer number (4348150560).

Almost surely, 280072862534 is an apocalyptic number.

80072862534 is an abundant number, since it is smaller than the sum of its proper divisors (128638364346).

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

80072862534 is a wasteful number, since it uses less digits than its factorization.

80072862534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33447345 (or 33447342 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 80072862534 in words is "eighty billion, seventy-two million, eight hundred sixty-two thousand, five hundred thirty-four".

Divisors: 1 2 3 6 7 9 14 18 19 21 38 42 57 63 114 126 133 171 266 342 399 798 1197 2394 33447311 66894622 100341933 200683866 234131177 301025799 468262354 602051598 635498909 702393531 1270997818 1404787062 1906496727 2107180593 3812993454 4214361186 4448492363 5719490181 8896984726 11438980362 13345477089 26690954178 40036431267 80072862534