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71428584430 = 2572394269491
BaseRepresentation
bin100001010000101111…
…0011011001111101110
320211100222111001022001
41002201132123033232
52132241204200210
652451442242514
75106031643560
oct1024136331756
9224328431261
1071428584430
1128324634765
1211a1535643a
1369743c3998
143658649330
151cd0c5003a
hex10a179b3ee

71428584430 has 32 divisors (see below), whose sum is σ = 147553643520. Its totient is φ = 24387326880.

The previous prime is 71428584427. The next prime is 71428584449. The reversal of 71428584430 is 3448582417.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2118016 + ... + 2151475.

It is an arithmetic number, because the mean of its divisors is an integer number (4611051360).

Almost surely, 271428584430 is an apocalyptic number.

71428584430 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71428584430 is an abundant number, since it is smaller than the sum of its proper divisors (76125059090).

71428584430 is a wasteful number, since it uses less digits than its factorization.

71428584430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4269744.

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 71428584430 in words is "seventy-one billion, four hundred twenty-eight million, five hundred eighty-four thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 239 478 1195 1673 2390 3346 8365 16730 4269491 8538982 21347455 29886437 42694910 59772874 149432185 298864370 1020408349 2040816698 5102041745 7142858443 10204083490 14285716886 35714292215 71428584430