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5212421405 = 51289980819
BaseRepresentation
bin1001101101010111…
…10011110100011101
3111110021002102221122
410312223303310131
541133334441110
62221120140325
7243111564602
oct46653636435
914407072848
105212421405
112235304394
1210157676a5
13650b74929
143763986a9
15207916255
hex136af3d1d

5212421405 has 8 divisors (see below), whose sum is σ = 6255468000. Its totient is φ = 4169562256.

The previous prime is 5212421377. The next prime is 5212421413. The reversal of 5212421405 is 5041242125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5212421405 is a prime.

It is a congruent number.

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, 24086 + ... + 104904.

It is an arithmetic number, because the mean of its divisors is an integer number (781933500).

Almost surely, 25212421405 is an apocalyptic number.

It is an amenable number.

5212421405 is a deficient number, since it is larger than the sum of its proper divisors (1043046595).

5212421405 is a wasteful number, since it uses less digits than its factorization.

5212421405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93723.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 5212421405 is about 72197.1010844618. The cubic root of 5212421405 is about 1733.8565889633.

The spelling of 5212421405 in words is "five billion, two hundred twelve million, four hundred twenty-one thousand, four hundred five".

Divisors: 1 5 12899 64495 80819 404095 1042484281 5212421405