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1023230312 = 231345721529
BaseRepresentation
bin111100111111010…
…100000101101000
32122022101111002222
4330333110011220
54043421332222
6245311213212
734233212516
oct7477240550
92568344088
101023230312
11485650095
12246817208
13133cb1a30
1499c774b6
155ec6e542
hex3cfd4168

1023230312 has 32 divisors (see below), whose sum is σ = 2070755400. Its totient is φ = 471204864.

The previous prime is 1023230281. The next prime is 1023230347. The reversal of 1023230312 is 2130323201.

It can be written as a sum of positive squares in 4 ways, for example, as 727596676 + 295633636 = 26974^2 + 17194^2 .

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, 36764 + ... + 58292.

Almost surely, 21023230312 is an apocalyptic number.

It is an amenable number.

1023230312 is an abundant number, since it is smaller than the sum of its proper divisors (1047525088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023230312 is a wasteful number, since it uses less digits than its factorization.

1023230312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22005 (or 22001 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1023230312 is about 31987.9713642488. The cubic root of 1023230312 is about 1007.6842385659.

Adding to 1023230312 its reverse (2130323201), we get a palindrome (3153553513).

The spelling of 1023230312 in words is "one billion, twenty-three million, two hundred thirty thousand, three hundred twelve".

Divisors: 1 2 4 8 13 26 52 104 457 914 1828 3656 5941 11882 21529 23764 43058 47528 86116 172232 279877 559754 1119508 2239016 9838753 19677506 39355012 78710024 127903789 255807578 511615156 1023230312