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23538648 = 2337140111
BaseRepresentation
bin101100111001…
…0101111011000
31122021212221210
41121302233120
522011214043
62200303120
7404034540
oct131625730
948255853
1023538648
1112317a31
127a71aa0
134b51cc3
1431aa320
1520ee633
hex1672bd8

23538648 has 32 divisors (see below), whose sum is σ = 67253760. Its totient is φ = 6725280.

The previous prime is 23538643. The next prime is 23538653. The reversal of 23538648 is 84683532.

It is an interprime number because it is at equal distance from previous prime (23538643) and next prime (23538653).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23538643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69888 + ... + 70223.

It is an arithmetic number, because the mean of its divisors is an integer number (2101680).

Almost surely, 223538648 is an apocalyptic number.

23538648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23538648 is an abundant number, since it is smaller than the sum of its proper divisors (43715112).

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

23538648 is a wasteful number, since it uses less digits than its factorization.

23538648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140127 (or 140123 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 23538648 is about 4851.6644566581. The cubic root of 23538648 is about 286.5896518070.

It can be divided in two parts, 235 and 38648, that added together give a palindrome (38883).

The spelling of 23538648 in words is "twenty-three million, five hundred thirty-eight thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 140111 280222 420333 560444 840666 980777 1120888 1681332 1961554 2942331 3362664 3923108 5884662 7846216 11769324 23538648