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23407480 = 2353143439
BaseRepresentation
bin101100101001…
…0101101111000
31122001020000201
41121102231320
521443014410
62153411544
7402650245
oct131225570
948036021
1023407480
1112238428
127a09bb4
134b073a5
1431745cc
1520c583a
hex1652b78

23407480 has 64 divisors (see below), whose sum is σ = 55756800. Its totient is φ = 8830080.

The previous prime is 23407451. The next prime is 23407481. The reversal of 23407480 is 8470432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23407481) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 53101 + ... + 53539.

It is an arithmetic number, because the mean of its divisors is an integer number (871200).

Almost surely, 223407480 is an apocalyptic number.

23407480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23407480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27878400).

23407480 is an abundant number, since it is smaller than the sum of its proper divisors (32349320).

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

23407480 is a wasteful number, since it uses less digits than its factorization.

23407480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 23407480 is about 4838.1277370487. The cubic root of 23407480 is about 286.0563241800.

The spelling of 23407480 in words is "twenty-three million, four hundred seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 31 40 43 62 86 124 155 172 215 248 310 344 430 439 620 860 878 1240 1333 1720 1756 2195 2666 3512 4390 5332 6665 8780 10664 13330 13609 17560 18877 26660 27218 37754 53320 54436 68045 75508 94385 108872 136090 151016 188770 272180 377540 544360 585187 755080 1170374 2340748 2925935 4681496 5851870 11703740 23407480