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74863152 = 243271329197
BaseRepresentation
bin1000111011001…
…01001000110000
312012212102221100
410131211020300
5123131110102
611232324400
71566216630
oct435451060
9165772840
1074863152
1139292881
12210a3700
1312682230
149d2a6c0
15688ba1c
hex4765230

74863152 has 240 divisors, whose sum is σ = 268107840. Its totient is φ = 18966528.

The previous prime is 74863147. The next prime is 74863163. The reversal of 74863152 is 25136847.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 379918 + ... + 380114.

It is an arithmetic number, because the mean of its divisors is an integer number (1117116).

Almost surely, 274863152 is an apocalyptic number.

74863152 is a gapful number since it is divisible by the number (72) 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 74863152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134053920).

74863152 is an abundant number, since it is smaller than the sum of its proper divisors (193244688).

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

74863152 is a wasteful number, since it uses less digits than its factorization.

74863152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 251 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 74863152 is about 8652.3495075037. The cubic root of 74863152 is about 421.4596829934.

Adding to 74863152 its reverse (25136847), we get a palindrome (99999999).

The spelling of 74863152 in words is "seventy-four million, eight hundred sixty-three thousand, one hundred fifty-two".