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238070136 = 233371272111
BaseRepresentation
bin11100011000010…
…10100101111000
3121120222012211110
432030022211320
5441421221021
635342400320
75620364013
oct1614124570
9546865743
10238070136
11112425687
12678900a0
133a426605
142389237a
1515d79476
hexe30a978

238070136 has 64 divisors (see below), whose sum is σ = 616366080. Its totient is φ = 76567680.

The previous prime is 238070113. The next prime is 238070137. The reversal of 238070136 is 631070832.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238070137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111721 + ... + 113831.

It is an arithmetic number, because the mean of its divisors is an integer number (9630720).

Almost surely, 2238070136 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 238070136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308183040).

238070136 is an abundant number, since it is smaller than the sum of its proper divisors (378295944).

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

238070136 is a wasteful number, since it uses less digits than its factorization.

238070136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284 (or 2280 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 238070136 is about 15429.5215739180. The cubic root of 238070136 is about 619.7763119525.

The spelling of 238070136 in words is "two hundred thirty-eight million, seventy thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 24 37 74 111 127 148 222 254 296 381 444 508 762 888 1016 1524 2111 3048 4222 4699 6333 8444 9398 12666 14097 16888 18796 25332 28194 37592 50664 56388 78107 112776 156214 234321 268097 312428 468642 536194 624856 804291 937284 1072388 1608582 1874568 2144776 3217164 6434328 9919589 19839178 29758767 39678356 59517534 79356712 119035068 238070136