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239028972 = 2237132331307
BaseRepresentation
bin11100011111101…
…00101011101100
3121122202221002220
432033310223230
5442142411342
635415115340
75631466320
oct1617645354
9548687086
10239028972
11112a20006
1268072b50
133a6a0b80
1423a61980
1515eb85ec
hexe3f4aec

239028972 has 192 divisors, whose sum is σ = 741801984. Its totient is φ = 58164480.

The previous prime is 239028971. The next prime is 239028973. The reversal of 239028972 is 279820932.

It is an interprime number because it is at equal distance from previous prime (239028971) and next prime (239028973).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (239028971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 778443 + ... + 778749.

It is an arithmetic number, because the mean of its divisors is an integer number (3863552).

Almost surely, 2239028972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239028972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370900992).

239028972 is an abundant number, since it is smaller than the sum of its proper divisors (502773012).

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

239028972 is a wasteful number, since it uses less digits than its factorization.

239028972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 239028972 is about 15460.5618267901. The cubic root of 239028972 is about 620.6072544972.

The spelling of 239028972 in words is "two hundred thirty-nine million, twenty-eight thousand, nine hundred seventy-two".