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8216414680 = 235205410367
BaseRepresentation
bin1111010011011110…
…01000100111011000
3210012121122010000211
413221233020213120
5113311400232210
63435150140504
7410416241515
oct75157104730
923177563024
108216414680
113536a51a61
1217137b1734
13a0c326946
1457d32030c
153314e838a
hex1e9bc89d8

8216414680 has 16 divisors (see below), whose sum is σ = 18486933120. Its totient is φ = 3286565856.

The previous prime is 8216414669. The next prime is 8216414699. The reversal of 8216414680 is 864146128.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 205410367 = 8216414680 / (8 + 2 + 1 + 6 + 4 + 1 + 4 + 6 + 8 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102705144 + ... + 102705223.

It is an arithmetic number, because the mean of its divisors is an integer number (1155433320).

Almost surely, 28216414680 is an apocalyptic number.

It is an amenable number.

8216414680 is an abundant number, since it is smaller than the sum of its proper divisors (10270518440).

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

8216414680 is a wasteful number, since it uses less digits than its factorization.

8216414680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205410378 (or 205410374 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 8216414680 is about 90644.4409768189. The cubic root of 8216414680 is about 2017.8743348515.

The spelling of 8216414680 in words is "eight billion, two hundred sixteen million, four hundred fourteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 205410367 410820734 821641468 1027051835 1643282936 2054103670 4108207340 8216414680