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7070713040 = 245531918731
BaseRepresentation
bin1101001010111001…
…01000010011010000
3200020202210102211202
412211130220103100
5103440100304130
63125341530332
7340135032506
oct64534502320
920222712752
107070713040
112aa92623a6
121453b739a8
13888b64191
144b10c6676
152b5b36145
hex1a57284d0

7070713040 has 80 divisors (see below), whose sum is σ = 16839207936. Its totient is φ = 2760076800.

The previous prime is 7070713037. The next prime is 7070713099. The reversal of 7070713040 is 403170707.

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

It is a junction number, because it is equal to n+sod(n) for n = 7070712994 and 7070713012.

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, 805475 + ... + 814205.

Almost surely, 27070713040 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 7070713040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8419603968).

7070713040 is an abundant number, since it is smaller than the sum of its proper divisors (9768494896).

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

7070713040 is a wasteful number, since it uses less digits than its factorization.

7070713040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8988 (or 8982 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 7070713040 is about 84087.5320127782. The cubic root of 7070713040 is about 1919.3510031629.

Adding to 7070713040 its reverse (403170707), we get a palindrome (7473883747).

The spelling of 7070713040 in words is "seven billion, seventy million, seven hundred thirteen thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 191 212 265 382 424 530 764 848 955 1060 1528 1910 2120 3056 3820 4240 7640 8731 10123 15280 17462 20246 34924 40492 43655 50615 69848 80984 87310 101230 139696 161968 174620 202460 349240 404920 462743 698480 809840 925486 1667621 1850972 2313715 3335242 3701944 4627430 6670484 7403888 8338105 9254860 13340968 16676210 18509720 26681936 33352420 37019440 66704840 88383913 133409680 176767826 353535652 441919565 707071304 883839130 1414142608 1767678260 3535356520 7070713040