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1405285066 = 21993530867
BaseRepresentation
bin101001111000010…
…1111001011001010
310121221021212201001
41103300233023022
510334223110231
6351240045214
746552504003
oct12360571312
93557255631
101405285066
11661279519
1233276380a
131951ac233
14d48ca1aa
158358ab61
hex53c2f2ca

1405285066 has 8 divisors (see below), whose sum is σ = 2118520800. Its totient is φ = 699111468.

The previous prime is 1405285051. The next prime is 1405285067. The reversal of 1405285066 is 6605825041.

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

It is a super-2 number, since 2×14052850662 = 3949652233445248712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1405285067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1765036 + ... + 1765831.

It is an arithmetic number, because the mean of its divisors is an integer number (264815100).

Almost surely, 21405285066 is an apocalyptic number.

1405285066 is a deficient number, since it is larger than the sum of its proper divisors (713235734).

1405285066 is a wasteful number, since it uses less digits than its factorization.

1405285066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531068.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 1405285066 is about 37487.1320055296. The cubic root of 1405285066 is about 1120.0948755725.

The spelling of 1405285066 in words is "one billion, four hundred five million, two hundred eighty-five thousand, sixty-six".

Divisors: 1 2 199 398 3530867 7061734 702642533 1405285066