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1204245530 = 253143611481
BaseRepresentation
bin100011111000111…
…0101010000011010
310002221000000022022
41013301311100122
54431241324110
6315255054442
741561626625
oct10761652032
93087000268
101204245530
11568846544
12297371422
1316264ca27
14b5d16dbc
1570ac8755
hex47c7541a

1204245530 has 64 divisors (see below), whose sum is σ = 2328708096. Its totient is φ = 447552000.

The previous prime is 1204245527. The next prime is 1204245533. The reversal of 1204245530 is 355424021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1204245527) and next prime (1204245533).

It is a self number, because there is not a number n which added to its sum of digits gives 1204245530.

It is not an unprimeable number, because it can be changed into a prime (1204245533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 812390 + ... + 813870.

It is an arithmetic number, because the mean of its divisors is an integer number (36386064).

Almost surely, 21204245530 is an apocalyptic number.

1204245530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1204245530 is a deficient number, since it is larger than the sum of its proper divisors (1124462566).

1204245530 is a wasteful number, since it uses less digits than its factorization.

1204245530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1204245530 is about 34702.2409939185. The cubic root of 1204245530 is about 1063.9103021648.

Adding to 1204245530 its reverse (355424021), we get a palindrome (1559669551).

The spelling of 1204245530 in words is "one billion, two hundred four million, two hundred forty-five thousand, five hundred thirty".

Divisors: 1 2 5 10 31 43 61 62 86 122 155 215 305 310 430 610 1333 1481 1891 2623 2666 2962 3782 5246 6665 7405 9455 13115 13330 14810 18910 26230 45911 63683 81313 90341 91822 127366 162626 180682 229555 318415 406565 451705 459110 636830 813130 903410 1974173 2800571 3884663 3948346 5601142 7769326 9870865 14002855 19423315 19741730 28005710 38846630 120424553 240849106 602122765 1204245530