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23373140 = 2257732287
BaseRepresentation
bin101100100101…
…0010101010100
31121222110220212
41121022111110
521440420030
62152544552
7402445160
oct131122524
947873825
1023373140
111221464a
1279b2158
134ac487b
143165ca0
1520ba595
hex164a554

23373140 has 48 divisors (see below), whose sum is σ = 56888832. Its totient is φ = 7900416.

The previous prime is 23373137. The next prime is 23373149. The reversal of 23373140 is 4137332.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23373149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9077 + ... + 11363.

It is an arithmetic number, because the mean of its divisors is an integer number (1185184).

Almost surely, 223373140 is an apocalyptic number.

23373140 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 23373140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28444416).

23373140 is an abundant number, since it is smaller than the sum of its proper divisors (33515692).

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

23373140 is a wasteful number, since it uses less digits than its factorization.

23373140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376 (or 2374 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 23373140 is about 4834.5775410060. The cubic root of 23373140 is about 285.9163691771.

The spelling of 23373140 in words is "twenty-three million, three hundred seventy-three thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 73 140 146 292 365 511 730 1022 1460 2044 2287 2555 4574 5110 9148 10220 11435 16009 22870 32018 45740 64036 80045 160090 166951 320180 333902 667804 834755 1168657 1669510 2337314 3339020 4674628 5843285 11686570 23373140