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23058420 = 223572112331
BaseRepresentation
bin101011111110…
…1011111110100
31121101111012120
41113331133310
521400332140
62142115540
7366664500
oct127753764
947344176
1023058420
111201a150
12787bbb0
134a14548
1430c3300
1520571d0
hex15fd7f4

23058420 has 288 divisors, whose sum is σ = 88252416. Its totient is φ = 4435200.

The previous prime is 23058407. The next prime is 23058461. The reversal of 23058420 is 2485032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 743805 + ... + 743835.

It is an arithmetic number, because the mean of its divisors is an integer number (306432).

Almost surely, 223058420 is an apocalyptic number.

23058420 is a gapful number since it is divisible by the number (20) 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 23058420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44126208).

23058420 is an abundant number, since it is smaller than the sum of its proper divisors (65193996).

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

23058420 is a wasteful number, since it uses less digits than its factorization.

23058420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 23058420 is about 4801.9183666531. The cubic root of 23058420 is about 284.6272751489.

The spelling of 23058420 in words is "twenty-three million, fifty-eight thousand, four hundred twenty".