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772080 = 24353217
BaseRepresentation
bin10111100011111110000
31110020002120
42330133300
5144201310
624314240
76363651
oct2743760
91406076
10772080
11488091
12312980
1321056a
14161528
15103b70
hexbc7f0

772080 has 40 divisors (see below), whose sum is σ = 2394192. Its totient is φ = 205824.

The previous prime is 772073. The next prime is 772081. The reversal of 772080 is 80277.

772080 = T97 + T98 + ... + T176.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×7720802 = 1192215052800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 772080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772081) by changing a digit.

772080 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1369 + ... + 1848.

2772080 is an apocalyptic number.

It is an amenable number.

772080 is an abundant number, since it is smaller than the sum of its proper divisors (1622112).

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

772080 is a wasteful number, since it uses less digits than its factorization.

772080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233 (or 3227 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 772080 is about 878.6808294256. The cubic root of 772080 is about 91.7390209276.

The spelling of 772080 in words is "seven hundred seventy-two thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 3217 6434 9651 12868 16085 19302 25736 32170 38604 48255 51472 64340 77208 96510 128680 154416 193020 257360 386040 772080