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238065156 = 22367107109
BaseRepresentation
bin11100011000010…
…01011000000100
3121120221222000000
432030021120010
5441421041111
635342321300
75620343340
oct1614113004
9546858000
10238065156
1111242196a
1267889230
133a424274
1423890620
1515d77c56
hexe309604

238065156 has 168 divisors, whose sum is σ = 727151040. Its totient is φ = 66764736.

The previous prime is 238065143. The next prime is 238065209. The reversal of 238065156 is 651560832.

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

It is a self number, because there is not a number n which added to its sum of digits gives 238065156.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2184030 + ... + 2184138.

It is an arithmetic number, because the mean of its divisors is an integer number (4328280).

Almost surely, 2238065156 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 238065156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363575520).

238065156 is an abundant number, since it is smaller than the sum of its proper divisors (489085884).

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

238065156 is a wasteful number, since it uses less digits than its factorization.

238065156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 238065156 is about 15429.3601941234. The cubic root of 238065156 is about 619.7719903863.

The spelling of 238065156 in words is "two hundred thirty-eight million, sixty-five thousand, one hundred fifty-six".