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2071057040 = 245132968669
BaseRepresentation
bin111101101110001…
…1101001010010000
312100100001121011022
41323130131022100
513220142311130
6541301535012
7102215460113
oct17334351220
95310047138
102071057040
1197306a898
12499714468
132700c6050
141590b457a
15c1c4b7e5
hex7b71d290

2071057040 has 80 divisors (see below), whose sum is σ = 5364500400. Its totient is φ = 738318336.

The previous prime is 2071056997. The next prime is 2071057061. The reversal of 2071057040 is 407501702.

It can be written as a sum of positive squares in 8 ways, for example, as 29463184 + 2041593856 = 5428^2 + 45184^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 4175 + ... + 64494.

It is an arithmetic number, because the mean of its divisors is an integer number (67056255).

Almost surely, 22071057040 is an apocalyptic number.

2071057040 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 2071057040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2682250200).

2071057040 is an abundant number, since it is smaller than the sum of its proper divisors (3293443360).

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

2071057040 is a wasteful number, since it uses less digits than its factorization.

2071057040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68724 (or 68718 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 2071057040 is about 45508.8677072941. The cubic root of 2071057040 is about 1274.6687931188.

Adding to 2071057040 its reverse (407501702), we get a palindrome (2478558742).

The spelling of 2071057040 in words is "two billion, seventy-one million, fifty-seven thousand, forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 29 40 52 58 65 80 104 116 130 145 208 232 260 290 377 464 520 580 754 1040 1160 1508 1885 2320 3016 3770 6032 7540 15080 30160 68669 137338 274676 343345 549352 686690 892697 1098704 1373380 1785394 1991401 2746760 3570788 3982802 4463485 5493520 7141576 7965604 8926970 9957005 14283152 15931208 17853940 19914010 25888213 31862416 35707880 39828020 51776426 71415760 79656040 103552852 129441065 159312080 207105704 258882130 414211408 517764260 1035528520 2071057040