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23011452 = 223471023
BaseRepresentation
bin101011111001…
…0000001111100
31121022002210000
41113302001330
521342331302
62141114300
7366410532
oct127620174
947262700
1023011452
1111a97932
127858990
1349c9059
1430b0152
15204831c
hex15f207c

23011452 has 30 divisors (see below), whose sum is σ = 60157328. Its totient is φ = 7670376.

The previous prime is 23011427. The next prime is 23011459. The reversal of 23011452 is 25411032.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011459) 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 9 ways as a sum of consecutive naturals, for example, 35188 + ... + 35835.

Almost surely, 223011452 is an apocalyptic number.

It is an amenable number.

23011452 is an abundant number, since it is smaller than the sum of its proper divisors (37145876).

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

23011452 is a wasteful number, since it uses less digits than its factorization.

23011452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71039 (or 71028 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 23011452 is about 4797.0253282633. The cubic root of 23011452 is about 284.4338901023.

Adding to 23011452 its reverse (25411032), we get a palindrome (48422484).

The spelling of 23011452 in words is "twenty-three million, eleven thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 71023 142046 213069 284092 426138 639207 852276 1278414 1917621 2556828 3835242 5752863 7670484 11505726 23011452