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2071220568 = 2331725719753
BaseRepresentation
bin111101101110100…
…0101000101011000
312100100100220110220
41323131011011120
513220213024233
6541305240040
7102220040634
oct17335050530
95310326426
102071220568
1197317173a
12499793020
13270152601
14159117dc4
15c1c7eeb3
hex7b745158

2071220568 has 64 divisors (see below), whose sum is σ = 5504254560. Its totient is φ = 647233536.

The previous prime is 2071220561. The next prime is 2071220573. The reversal of 2071220568 is 8650221702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071220561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94980 + ... + 114732.

Almost surely, 22071220568 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 2071220568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2752127280).

2071220568 is an abundant number, since it is smaller than the sum of its proper divisors (3433033992).

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

2071220568 is a wasteful number, since it uses less digits than its factorization.

2071220568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20036 (or 20032 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 2071220568 is about 45510.6643326594. The cubic root of 2071220568 is about 1274.7023409720.

The spelling of 2071220568 in words is "two billion, seventy-one million, two hundred twenty thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 257 408 514 771 1028 1542 2056 3084 4369 6168 8738 13107 17476 19753 26214 34952 39506 52428 59259 79012 104856 118518 158024 237036 335801 474072 671602 1007403 1343204 2014806 2686408 4029612 5076521 8059224 10153042 15229563 20306084 30459126 40612168 60918252 86300857 121836504 172601714 258902571 345203428 517805142 690406856 1035610284 2071220568