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23120475 = 352747937
BaseRepresentation
bin101100000110…
…0101001011011
31121111122022220
41120030221123
521404323400
62143315123
7400343430
oct130145133
947448286
1023120475
1112061834
1278abaa3
134a36871
1430dbb87
15206a7a0
hex160ca5b

23120475 has 48 divisors (see below), whose sum is σ = 44663808. Its totient is φ = 10333440.

The previous prime is 23120443. The next prime is 23120501. The reversal of 23120475 is 57402132.

It is not a de Polignac number, because 23120475 - 25 = 23120443 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24207 + ... + 25143.

It is an arithmetic number, because the mean of its divisors is an integer number (930496).

Almost surely, 223120475 is an apocalyptic number.

23120475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23120475 is a deficient number, since it is larger than the sum of its proper divisors (21543333).

23120475 is a wasteful number, since it uses less digits than its factorization.

23120475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 23120475 is about 4808.3755053032. The cubic root of 23120475 is about 284.8823768237.

It can be divided in two parts, 231 and 20475, that added together give a triangular number (20706 = T203).

The spelling of 23120475 in words is "twenty-three million, one hundred twenty thousand, four hundred seventy-five".

Divisors: 1 3 5 7 15 21 25 35 47 75 105 141 175 235 329 525 705 937 987 1175 1645 2811 3525 4685 4935 6559 8225 14055 19677 23425 24675 32795 44039 70275 98385 132117 163975 220195 308273 491925 660585 924819 1100975 1541365 3302925 4624095 7706825 23120475