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23728452 = 22311672683
BaseRepresentation
bin101101010000…
…1000101000100
31122122112022120
41122201011010
522033302302
62204325540
7405455106
oct132410504
948575276
1023728452
11124375a0
127b438b0
134bba507
143219576
15213a9bc
hex16a1144

23728452 has 48 divisors (see below), whose sum is σ = 61324032. Its totient is φ = 7080480.

The previous prime is 23728429. The next prime is 23728457. The reversal of 23728452 is 25482732.

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

It is not an unprimeable number, because it can be changed into a prime (23728457) 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, 7503 + ... + 10185.

It is an arithmetic number, because the mean of its divisors is an integer number (1277584).

Almost surely, 223728452 is an apocalyptic number.

23728452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23728452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30662016).

23728452 is an abundant number, since it is smaller than the sum of its proper divisors (37595580).

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

23728452 is a wasteful number, since it uses less digits than its factorization.

23728452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768 (or 2766 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 23728452 is about 4871.1858925728. The cubic root of 23728452 is about 287.3578962510.

The spelling of 23728452 in words is "twenty-three million, seven hundred twenty-eight thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 67 132 134 201 268 402 737 804 1474 2211 2683 2948 4422 5366 8049 8844 10732 16098 29513 32196 59026 88539 118052 177078 179761 354156 359522 539283 719044 1078566 1977371 2157132 3954742 5932113 7909484 11864226 23728452