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5210720740 = 2251913712423
BaseRepresentation
bin1001101101001010…
…10100100111100100
3111110010220001002001
410312211110213210
541132421030430
62221015455044
7243061252441
oct46645244744
914403801061
105210720740
112234352685
121015087484
136506ca814
143760749c8
152076cc3ca
hex1369549e4

5210720740 has 24 divisors (see below), whose sum is σ = 11518436160. Its totient is φ = 1974588768.

The previous prime is 5210720707. The next prime is 5210720761. The reversal of 5210720740 is 470270125.

It is a super-2 number, since 2×52107207402 = 54303221260532295200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5210720699 and 5210720708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6855832 + ... + 6856591.

It is an arithmetic number, because the mean of its divisors is an integer number (479934840).

Almost surely, 25210720740 is an apocalyptic number.

It is an amenable number.

5210720740 is an abundant number, since it is smaller than the sum of its proper divisors (6307715420).

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

5210720740 is a wasteful number, since it uses less digits than its factorization.

5210720740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13712451 (or 13712449 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 5210720740 is about 72185.3221922573. The cubic root of 5210720740 is about 1733.6679990714.

Adding to 5210720740 its reverse (470270125), we get a palindrome (5680990865).

The spelling of 5210720740 in words is "five billion, two hundred ten million, seven hundred twenty thousand, seven hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 13712423 27424846 54849692 68562115 137124230 260536037 274248460 521072074 1042144148 1302680185 2605360370 5210720740