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80215416 = 233219191307
BaseRepresentation
bin1001100011111…
…11110101111000
312120221100212100
410301333311320
5131013343131
611543143400
71662551121
oct461776570
9176840770
1080215416
1141309036
1222a44b60
1313807458
14a921048
1570977e6
hex4c7fd78

80215416 has 96 divisors (see below), whose sum is σ = 230630400. Its totient is φ = 25116480.

The previous prime is 80215409. The next prime is 80215441. The reversal of 80215416 is 61451208.

It is a super-3 number, since 3×802154163 (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80215416.

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 23 ways as a sum of consecutive naturals, for example, 261135 + ... + 261441.

It is an arithmetic number, because the mean of its divisors is an integer number (2402400).

Almost surely, 280215416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80215416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115315200).

80215416 is an abundant number, since it is smaller than the sum of its proper divisors (150414984).

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

80215416 is a wasteful number, since it uses less digits than its factorization.

80215416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 80215416 is about 8956.3059349265. The cubic root of 80215416 is about 431.2733411437.

It can be divided in two parts, 80 and 215416, that added together give a triangular number (215496 = T656).

The spelling of 80215416 in words is "eighty million, two hundred fifteen thousand, four hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 36 38 57 72 76 114 152 171 191 228 307 342 382 456 573 614 684 764 921 1146 1228 1368 1528 1719 1842 2292 2456 2763 3438 3629 3684 4584 5526 5833 6876 7258 7368 10887 11052 11666 13752 14516 17499 21774 22104 23332 29032 32661 34998 43548 46664 52497 58637 65322 69996 87096 104994 117274 130644 139992 175911 209988 234548 261288 351822 419976 469096 527733 703644 1055466 1114103 1407288 2110932 2228206 3342309 4221864 4456412 6684618 8912824 10026927 13369236 20053854 26738472 40107708 80215416