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8242404620 = 22531131910079
BaseRepresentation
bin1111010110100100…
…10001110100001100
3210021102112112112012
413223102101310030
5113340023421440
63441515200352
7411153166112
oct75322216414
923242475465
108242404620
11354a69364a
1217204460b8
13a148265c8
14582967ab2
1533392de65
hex1eb491d0c

8242404620 has 48 divisors (see below), whose sum is σ = 17882726400. Its totient is φ = 3187872960.

The previous prime is 8242404581. The next prime is 8242404631. The reversal of 8242404620 is 264042428.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812741 + ... + 822819.

It is an arithmetic number, because the mean of its divisors is an integer number (372556800).

Almost surely, 28242404620 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 8242404620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8941363200).

8242404620 is an abundant number, since it is smaller than the sum of its proper divisors (9640321780).

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

8242404620 is a wasteful number, since it uses less digits than its factorization.

8242404620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11438 (or 11436 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 8242404620 is about 90787.6898042901. The cubic root of 8242404620 is about 2019.9997238832. Note that the first 3 decimals are identical.

The spelling of 8242404620 in words is "eight billion, two hundred forty-two million, four hundred four thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 1319 2638 5276 6595 10079 13190 20158 26380 40316 40889 50395 81778 100790 163556 201580 204445 312449 408890 624898 817780 1249796 1562245 3124490 6248980 13294201 26588402 53176804 66471005 132942010 265884020 412120231 824240462 1648480924 2060601155 4121202310 8242404620