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5211297492 = 223434274791
BaseRepresentation
bin1001101101001111…
…00001011011010100
3111110011222100020020
410312213201123110
541133043004432
62221040105140
7243066204102
oct46647413324
914404870206
105211297492
112234706a35
1210153051b0
136508701ab
14376184c72
1520779322c
hex1369e16d4

5211297492 has 12 divisors (see below), whose sum is σ = 12159694176. Its totient is φ = 1737099160.

The previous prime is 5211297467. The next prime is 5211297493. The reversal of 5211297492 is 2947921125.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5211297493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217137384 + ... + 217137407.

It is an arithmetic number, because the mean of its divisors is an integer number (1013307848).

Almost surely, 25211297492 is an apocalyptic number.

It is an amenable number.

5211297492 is an abundant number, since it is smaller than the sum of its proper divisors (6948396684).

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

5211297492 is a wasteful number, since it uses less digits than its factorization.

5211297492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434274798 (or 434274796 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 5211297492 is about 72189.3170212879. The cubic root of 5211297492 is about 1733.7319607667.

The spelling of 5211297492 in words is "five billion, two hundred eleven million, two hundred ninety-seven thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 434274791 868549582 1302824373 1737099164 2605648746 5211297492