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5211321432 = 233217138393
BaseRepresentation
bin1001101101001111…
…00111010001011000
3111110012000120001220
410312213213101120
541133044241212
62221040412040
7243066333642
oct46647472130
914405016056
105211321432
112234722a19
121015317020
1365087b065
1437618d892
1520779a38c
hex1369e7458

5211321432 has 16 divisors (see below), whose sum is σ = 13028303640. Its totient is φ = 1737107136.

The previous prime is 5211321421. The next prime is 5211321461. The reversal of 5211321432 is 2341231125.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 217138393 = 5211321432 / (5 + 2 + 1 + 1 + 3 + 2 + 1 + 4 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

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, 108569173 + ... + 108569220.

Almost surely, 25211321432 is an apocalyptic number.

It is an amenable number.

5211321432 is an abundant number, since it is smaller than the sum of its proper divisors (7816982208).

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

5211321432 is a wasteful number, since it uses less digits than its factorization.

5211321432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217138402 (or 217138398 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 5211321432 is about 72189.4828351056. The cubic root of 5211321432 is about 1733.7346156065.

Adding to 5211321432 its reverse (2341231125), we get a palindrome (7552552557).

The spelling of 5211321432 in words is "five billion, two hundred eleven million, three hundred twenty-one thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 217138393 434276786 651415179 868553572 1302830358 1737107144 2605660716 5211321432