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2070856920 = 23351121271123
BaseRepresentation
bin111101101101110…
…1100010011011000
312100022200102122110
41323123230103120
513220114410140
6541253352320
7102213664506
oct17333542330
95308612573
102070856920
11972a43500
124996386a0
13270055c32
14159061676
15c1c0c380
hex7b6ec4d8

2070856920 has 192 divisors, whose sum is σ = 6888591360. Its totient is φ = 497629440.

The previous prime is 2070856901. The next prime is 2070856933. The reversal of 2070856920 is 296580702.

It is a happy number.

It is a super-2 number, since 2×20708569202 = 8576896766223772800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1843479 + ... + 1844601.

It is an arithmetic number, because the mean of its divisors is an integer number (35878080).

Almost surely, 22070856920 is an apocalyptic number.

2070856920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2070856920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3444295680).

2070856920 is an abundant number, since it is smaller than the sum of its proper divisors (4817734440).

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

2070856920 is a wasteful number, since it uses less digits than its factorization.

2070856920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2070856920 is about 45506.6689618126. The cubic root of 2070856920 is about 1274.6277359951.

The spelling of 2070856920 in words is "two billion, seventy million, eight hundred fifty-six thousand, nine hundred twenty".