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6850019420 = 2253755716619
BaseRepresentation
bin1100110000100101…
…10000000001011100
3122200101112001002222
412120102300001130
5103012101110140
63051415404512
7331515130046
oct63022600134
918611461088
106850019420
1129a5725a82
1213b2083738
13852212b3a
1448da78a96
152a15905b5
hex1984b005c

6850019420 has 48 divisors (see below), whose sum is σ = 14801240160. Its totient is φ = 2661007104.

The previous prime is 6850019387. The next prime is 6850019467. The reversal of 6850019420 is 249100586.

It is a congruent number.

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, 403871 + ... + 420489.

It is an arithmetic number, because the mean of its divisors is an integer number (308359170).

Almost surely, 26850019420 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 6850019420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7400620080).

6850019420 is an abundant number, since it is smaller than the sum of its proper divisors (7951220740).

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

6850019420 is a wasteful number, since it uses less digits than its factorization.

6850019420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17222 (or 17220 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 6850019420 is about 82764.8441066616. The cubic root of 6850019420 is about 1899.1704060648.

The spelling of 6850019420 in words is "six billion, eight hundred fifty million, nineteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 557 740 1114 2228 2785 5570 11140 16619 20609 33238 41218 66476 82436 83095 103045 166190 206090 332380 412180 614903 1229806 2459612 3074515 6149030 9256783 12298060 18513566 37027132 46283915 92567830 185135660 342500971 685001942 1370003884 1712504855 3425009710 6850019420