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49268391220 = 22517433369931
BaseRepresentation
bin101101111000100111…
…111111110100110100
311201011121011121001101
4231320213333310310
51301400202004340
634344504335444
73362626262356
oct557047776464
9151147147041
1049268391220
11199927a45a4
12966ba74584
134852314319
1425554c90d6
15143552bc9a
hexb789ffd34

49268391220 has 48 divisors (see below), whose sum is σ = 112097418048. Its totient is φ = 18116743680.

The previous prime is 49268391191. The next prime is 49268391253. The reversal of 49268391220 is 2219386294.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1670346 + ... + 1699585.

It is an arithmetic number, because the mean of its divisors is an integer number (2335362876).

Almost surely, 249268391220 is an apocalyptic number.

It is an amenable number.

49268391220 is an abundant number, since it is smaller than the sum of its proper divisors (62829026828).

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

49268391220 is a wasteful number, since it uses less digits than its factorization.

49268391220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370000 (or 3369998 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 49268391220 in words is "forty-nine billion, two hundred sixty-eight million, three hundred ninety-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 43 68 85 86 170 172 215 340 430 731 860 1462 2924 3655 7310 14620 3369931 6739862 13479724 16849655 33699310 57288827 67398620 114577654 144907033 229155308 286444135 289814066 572888270 579628132 724535165 1145776540 1449070330 2463419561 2898140660 4926839122 9853678244 12317097805 24634195610 49268391220