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5812991405 = 51389430637
BaseRepresentation
bin1010110100111101…
…10011010110101101
3120000010011120002222
411122132303112231
543401111211110
62400452325125
7264023416544
oct53236632655
916003146088
105812991405
112513311531
1211629137a5
1371840cab0
143d204d15b
152404e7c55
hex15a7b35ad

5812991405 has 8 divisors (see below), whose sum is σ = 7512173592. Its totient is φ = 4292670528.

The previous prime is 5812991383. The next prime is 5812991447. The reversal of 5812991405 is 5041992185.

It can be written as a sum of positive squares in 4 ways, for example, as 8684809 + 5804306596 = 2947^2 + 76186^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5812991405 - 212 = 5812987309 is a prime.

It is a Duffinian number.

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, 44715254 + ... + 44715383.

It is an arithmetic number, because the mean of its divisors is an integer number (939021699).

Almost surely, 25812991405 is an apocalyptic number.

It is an amenable number.

5812991405 is a deficient number, since it is larger than the sum of its proper divisors (1699182187).

5812991405 is a wasteful number, since it uses less digits than its factorization.

5812991405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89430655.

The product of its (nonzero) digits is 129600, while the sum is 44.

The square root of 5812991405 is about 76242.9761027204. The cubic root of 5812991405 is about 1798.0422546876.

The spelling of 5812991405 in words is "five billion, eight hundred twelve million, nine hundred ninety-one thousand, four hundred five".

Divisors: 1 5 13 65 89430637 447153185 1162598281 5812991405