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1021214344 = 23177508929
BaseRepresentation
bin111100110111100…
…111111010001000
32122011121001201111
4330313213322020
54042412324334
6245200100104
734210115203
oct7467477210
92564531644
101021214344
114844a34a7
12246004634
13133757257
14998b093a
155e9c2064
hex3cde7e88

1021214344 has 16 divisors (see below), whose sum is σ = 2027411100. Its totient is φ = 480571392.

The previous prime is 1021214339. The next prime is 1021214357. The reversal of 1021214344 is 4434121201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 943104100 + 78110244 = 30710^2 + 8838^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3754329 + ... + 3754600.

Almost surely, 21021214344 is an apocalyptic number.

It is an amenable number.

1021214344 is a deficient number, since it is larger than the sum of its proper divisors (1006196756).

1021214344 is a wasteful number, since it uses less digits than its factorization.

1021214344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7508952 (or 7508948 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1021214344 is about 31956.4444830773. Note that the first 4 decimals coincide. The cubic root of 1021214344 is about 1007.0220237663.

Adding to 1021214344 its reverse (4434121201), we get a palindrome (5455335545).

The spelling of 1021214344 in words is "one billion, twenty-one million, two hundred fourteen thousand, three hundred forty-four".

Divisors: 1 2 4 8 17 34 68 136 7508929 15017858 30035716 60071432 127651793 255303586 510607172 1021214344