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23428383 = 3112233277
BaseRepresentation
bin101100101011…
…1110100011111
31122002021200220
41121113310133
521444202013
62154052423
7403065216
oct131276437
948067626
1023428383
1112252100
127a1a113
134b13a64
14317c07d
1520cbb23
hex1657d1f

23428383 has 24 divisors (see below), whose sum is σ = 34607664. Its totient is φ = 14087040.

The previous prime is 23428381. The next prime is 23428409. The reversal of 23428383 is 38382432.

It is not a de Polignac number, because 23428383 - 21 = 23428381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23428381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84441 + ... + 84717.

It is an arithmetic number, because the mean of its divisors is an integer number (1441986).

Almost surely, 223428383 is an apocalyptic number.

23428383 is a deficient number, since it is larger than the sum of its proper divisors (11179281).

23428383 is a wasteful number, since it uses less digits than its factorization.

23428383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 524 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 23428383 is about 4840.2874914616. The cubic root of 23428383 is about 286.1414487690.

The spelling of 23428383 in words is "twenty-three million, four hundred twenty-eight thousand, three hundred eighty-three".

Divisors: 1 3 11 33 121 233 277 363 699 831 2563 3047 7689 9141 28193 33517 64541 84579 100551 193623 709951 2129853 7809461 23428383