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130203254 = 24711091249
BaseRepresentation
bin1111100001010…
…11111001110110
3100002000000021202
413300223321312
5231313001004
620530412502
73140465216
oct760537166
9302000252
10130203254
11675506a5
1237731132
1320c8a15c
1413414246
15b66db1e
hex7c2be76

130203254 has 16 divisors (see below), whose sum is σ = 199800000. Its totient is φ = 63608064.

The previous prime is 130203251. The next prime is 130203277. The reversal of 130203254 is 452302031.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130203251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103622 + ... + 104870.

It is an arithmetic number, because the mean of its divisors is an integer number (12487500).

Almost surely, 2130203254 is an apocalyptic number.

130203254 is a deficient number, since it is larger than the sum of its proper divisors (69596746).

130203254 is a wasteful number, since it uses less digits than its factorization.

130203254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 130203254 is about 11410.6640472849. The cubic root of 130203254 is about 506.8435755921.

Adding to 130203254 its reverse (452302031), we get a palindrome (582505285).

The spelling of 130203254 in words is "one hundred thirty million, two hundred three thousand, two hundred fifty-four".

Divisors: 1 2 47 94 1109 1249 2218 2498 52123 58703 104246 117406 1385141 2770282 65101627 130203254