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23153130 = 232571113257
BaseRepresentation
bin101100001010…
…0100111101010
31121120022010100
41120110213222
521411400010
62144130230
7400540560
oct130244752
947508110
1023153130
1112084320
127906976
134a486a0
143109a30
1520752c0
hex16149ea

23153130 has 192 divisors, whose sum is σ = 81139968. Its totient is φ = 4423680.

The previous prime is 23153129. The next prime is 23153149. The reversal of 23153130 is 3135132.

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

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, 89962 + ... + 90218.

It is an arithmetic number, because the mean of its divisors is an integer number (422604).

Almost surely, 223153130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23153130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40569984).

23153130 is an abundant number, since it is smaller than the sum of its proper divisors (57986838).

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

23153130 is a wasteful number, since it uses less digits than its factorization.

23153130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 23153130 is about 4811.7699446254. The cubic root of 23153130 is about 285.0164348787.

Adding to 23153130 its reverse (3135132), we get a palindrome (26288262).

It can be divided in two parts, 2315 and 3130, that added together give a palindrome (5445).

The spelling of 23153130 in words is "twenty-three million, one hundred fifty-three thousand, one hundred thirty".