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1021230412 = 221313535521
BaseRepresentation
bin111100110111101…
…011110101001100
32122011121212202121
4330313223311030
54042413333122
6245200302324
734210213066
oct7467536514
92564555677
101021230412
11484504584
122460119a4
13133761667
14998b6736
155e9c6bc7
hex3cdebd4c

1021230412 has 24 divisors (see below), whose sum is σ = 1806224112. Its totient is φ = 505190400.

The previous prime is 1021230407. The next prime is 1021230437. The reversal of 1021230412 is 2140321201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182212 + ... + 187732.

It is an arithmetic number, because the mean of its divisors is an integer number (75259338).

Almost surely, 21021230412 is an apocalyptic number.

It is an amenable number.

1021230412 is a deficient number, since it is larger than the sum of its proper divisors (784993700).

1021230412 is a wasteful number, since it uses less digits than its factorization.

1021230412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6009 (or 6007 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1021230412 is about 31956.6958867778. The cubic root of 1021230412 is about 1007.0273053037.

Adding to 1021230412 its reverse (2140321201), we get a palindrome (3161551613).

The spelling of 1021230412 in words is "one billion, twenty-one million, two hundred thirty thousand, four hundred twelve".

Divisors: 1 2 4 131 262 353 524 706 1412 5521 11042 22084 46243 92486 184972 723251 1446502 1948913 2893004 3897826 7795652 255307603 510615206 1021230412