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69930917064 = 23327313304969
BaseRepresentation
bin100000100100000110…
…1010001110011001000
320200111121100122220100
41001020031101303020
52121204303321224
652043102125400
75023644662451
oct1011015216310
9220447318810
1069930917064
11277261a8038
1211677880860
13679603a388
143555792128
151c44516ac9
hex1048351cc8

69930917064 has 48 divisors (see below), whose sum is σ = 191990717100. Its totient is φ = 22990984704.

The previous prime is 69930917059. The next prime is 69930917081. The reversal of 69930917064 is 46071903996.

It can be written as a sum of positive squares in 2 ways, for example, as 69395364900 + 535552164 = 263430^2 + 23142^2 .

It is a super-2 number, since 2×699309170642 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 69930917064.

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 11 ways as a sum of consecutive naturals, for example, 6647229 + ... + 6657740.

Almost surely, 269930917064 is an apocalyptic number.

It is an amenable number.

69930917064 is an abundant number, since it is smaller than the sum of its proper divisors (122059800036).

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

69930917064 is a wasteful number, since it uses less digits than its factorization.

69930917064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13305054 (or 13305047 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 69930917064 in words is "sixty-nine billion, nine hundred thirty million, nine hundred seventeen thousand, sixty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 73 146 219 292 438 584 657 876 1314 1752 2628 5256 13304969 26609938 39914907 53219876 79829814 106439752 119744721 159659628 239489442 319319256 478978884 957957768 971262737 1942525474 2913788211 3885050948 5827576422 7770101896 8741364633 11655152844 17482729266 23310305688 34965458532 69930917064