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130406424 = 23319285979
BaseRepresentation
bin1111100010111…
…01100000011000
3100002101022222120
413301131200120
5231341001144
620535021240
73142302441
oct761354030
9302338876
10130406424
116767a305
123780a820
132102b785
14134682c8
15b6ade19
hex7c5d818

130406424 has 32 divisors (see below), whose sum is σ = 343176000. Its totient is φ = 41180832.

The previous prime is 130406411. The next prime is 130406431. The reversal of 130406424 is 424604031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 130406394 and 130406403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142534 + ... + 143445.

It is an arithmetic number, because the mean of its divisors is an integer number (10724250).

Almost surely, 2130406424 is an apocalyptic number.

It is an amenable number.

130406424 is an abundant number, since it is smaller than the sum of its proper divisors (212769576).

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

130406424 is a wasteful number, since it uses less digits than its factorization.

130406424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286007 (or 286003 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 130406424 is about 11419.5632140638. The cubic root of 130406424 is about 507.1070659205.

The spelling of 130406424 in words is "one hundred thirty million, four hundred six thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 285979 571958 857937 1143916 1715874 2287832 3431748 5433601 6863496 10867202 16300803 21734404 32601606 43468808 65203212 130406424