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23040510 = 235811947
BaseRepresentation
bin101011111100…
…1000111111110
31121100120122020
41113321013332
521344244020
62141501010
7366561333
oct127710776
947316566
1023040510
1112007749
127871766
134a0934c
1430ba98a
152051c40
hex15f91fe

23040510 has 32 divisors (see below), whose sum is σ = 55423872. Its totient is φ = 6130080.

The previous prime is 23040497. The next prime is 23040541. The reversal of 23040510 is 1504032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 23040510.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 23857 + ... + 24803.

It is an arithmetic number, because the mean of its divisors is an integer number (1731996).

Almost surely, 223040510 is an apocalyptic number.

23040510 is an abundant number, since it is smaller than the sum of its proper divisors (32383362).

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

23040510 is a wasteful number, since it uses less digits than its factorization.

23040510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 23040510 is about 4800.0531247060. The cubic root of 23040510 is about 284.5535638988.

Adding to 23040510 its reverse (1504032), we get a palindrome (24544542).

The spelling of 23040510 in words is "twenty-three million, forty thousand, five hundred ten".

Divisors: 1 2 3 5 6 10 15 30 811 947 1622 1894 2433 2841 4055 4735 4866 5682 8110 9470 12165 14205 24330 28410 768017 1536034 2304051 3840085 4608102 7680170 11520255 23040510