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80070753 = 372544699
BaseRepresentation
bin1001100010111…
…00100001100001
312120200000102110
410301130201201
5130444231003
611540105533
71661406300
oct461344141
9176600373
1080070753
114121a384
12229952a9
1313786659
14a8c4437
157069a03
hex4c5c861

80070753 has 12 divisors (see below), whose sum is σ = 124191600. Its totient is φ = 45754632.

The previous prime is 80070743. The next prime is 80070761. The reversal of 80070753 is 35707008.

It is not a de Polignac number, because 80070753 - 210 = 80069729 is a prime.

It is a super-3 number, since 3×800707533 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80070753.

It is not an unprimeable number, because it can be changed into a prime (80070703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272203 + ... + 272496.

It is an arithmetic number, because the mean of its divisors is an integer number (10349300).

Almost surely, 280070753 is an apocalyptic number.

It is an amenable number.

80070753 is a deficient number, since it is larger than the sum of its proper divisors (44120847).

80070753 is a wasteful number, since it uses less digits than its factorization.

80070753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544716 (or 544709 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 80070753 is about 8948.2262488160. The cubic root of 80070753 is about 431.0139278413.

The spelling of 80070753 in words is "eighty million, seventy thousand, seven hundred fifty-three".

Divisors: 1 3 7 21 49 147 544699 1634097 3812893 11438679 26690251 80070753