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23041428 = 2232973907
BaseRepresentation
bin101011111100…
…1010110010100
31121100121220020
41113321112110
521344311203
62141505140
7366564114
oct127712624
947317806
1023041428
1112008403
1278721b0
134a098a7
1430bb044
152052153
hex15f9594

23041428 has 48 divisors (see below), whose sum is σ = 56441280. Its totient is φ = 7305984.

The previous prime is 23041427. The next prime is 23041429. The reversal of 23041428 is 82414032.

It is an interprime number because it is at equal distance from previous prime (23041427) and next prime (23041429).

It is a junction number, because it is equal to n+sod(n) for n = 23041398 and 23041407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23041427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24951 + ... + 25857.

It is an arithmetic number, because the mean of its divisors is an integer number (1175860).

Almost surely, 223041428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23041428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28220640).

23041428 is an abundant number, since it is smaller than the sum of its proper divisors (33399852).

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

23041428 is a wasteful number, since it uses less digits than its factorization.

23041428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 23041428 is about 4800.1487476952. The cubic root of 23041428 is about 284.5573429920.

The spelling of 23041428 in words is "twenty-three million, forty-one thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 29 58 73 87 116 146 174 219 292 348 438 876 907 1814 2117 2721 3628 4234 5442 6351 8468 10884 12702 25404 26303 52606 66211 78909 105212 132422 157818 198633 264844 315636 397266 794532 1920119 3840238 5760357 7680476 11520714 23041428