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130043123 = 7374871031
BaseRepresentation
bin1111100000001…
…00110011110011
3100001200212121222
413300010303303
5231242334443
620523135255
73136230320
oct760046363
9301625558
10130043123
1167451361
123767452b
1320c322c2
14133b1b47
15b63b468
hex7c04cf3

130043123 has 16 divisors (see below), whose sum is σ = 153099264. Its totient is φ = 108125280.

The previous prime is 130043099. The next prime is 130043129. The reversal of 130043123 is 321340031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 130043123 - 26 = 130043059 is a prime.

It is a super-2 number, since 2×1300431232 = 33822427679186258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130043129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125618 + ... + 126648.

It is an arithmetic number, because the mean of its divisors is an integer number (9568704).

Almost surely, 2130043123 is an apocalyptic number.

130043123 is a deficient number, since it is larger than the sum of its proper divisors (23056141).

130043123 is a wasteful number, since it uses less digits than its factorization.

130043123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562.

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

The square root of 130043123 is about 11403.6451628416. The cubic root of 130043123 is about 506.6357091446.

Adding to 130043123 its reverse (321340031), we get a palindrome (451383154).

The spelling of 130043123 in words is "one hundred thirty million, forty-three thousand, one hundred twenty-three".

Divisors: 1 7 37 259 487 1031 3409 7217 18019 38147 126133 267029 502097 3514679 18577589 130043123