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7001040 = 243531941
BaseRepresentation
bin11010101101001111010000
3111011200121210
4122231033100
53243013130
6410020120
7113336124
oct32551720
914150553
107001040
113a51a92
122417640
1315b1837
14d03584
159345b0
hex6ad3d0

7001040 has 80 divisors (see below), whose sum is σ = 22427136. Its totient is φ = 1804800.

The previous prime is 7001021. The next prime is 7001041. The reversal of 7001040 is 401007.

7001040 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×70010402 = 98029122163200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7001041) 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, 6970 + ... + 7910.

Almost surely, 27001040 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 7001040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11213568).

7001040 is an abundant number, since it is smaller than the sum of its proper divisors (15426096).

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

7001040 is a wasteful number, since it uses less digits than its factorization.

7001040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 7001040 is about 2645.9478452910. The cubic root of 7001040 is about 191.3025913721.

Adding to 7001040 its reverse (401007), we get a palindrome (7402047).

The spelling of 7001040 in words is "seven million, one thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 40 48 60 62 80 93 120 124 155 186 240 248 310 372 465 496 620 744 930 941 1240 1488 1860 1882 2480 2823 3720 3764 4705 5646 7440 7528 9410 11292 14115 15056 18820 22584 28230 29171 37640 45168 56460 58342 75280 87513 112920 116684 145855 175026 225840 233368 291710 350052 437565 466736 583420 700104 875130 1166840 1400208 1750260 2333680 3500520 7001040