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238480680 = 23351987339
BaseRepresentation
bin11100011011011…
…10110100101000
3121121202001222210
432031232310220
5442022340210
635355245120
75624023644
oct1615566450
9547661883
10238480680
11112686079
1267a497a0
133a53b439
142395bc24
1515e0ae20
hexe36ed28

238480680 has 32 divisors (see below), whose sum is σ = 715442400. Its totient is φ = 63594816.

The previous prime is 238480667. The next prime is 238480681. The reversal of 238480680 is 86084832.

It is not an unprimeable number, because it can be changed into a prime (238480681) 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, 993550 + ... + 993789.

It is an arithmetic number, because the mean of its divisors is an integer number (22357575).

Almost surely, 2238480680 is an apocalyptic number.

238480680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238480680 is an abundant number, since it is smaller than the sum of its proper divisors (476961720).

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

238480680 is a wasteful number, since it uses less digits than its factorization.

238480680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987353 (or 1987349 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 238480680 is about 15442.8196907171. The cubic root of 238480680 is about 620.1323685465.

The spelling of 238480680 in words is "two hundred thirty-eight million, four hundred eighty thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1987339 3974678 5962017 7949356 9936695 11924034 15898712 19873390 23848068 29810085 39746780 47696136 59620170 79493560 119240340 238480680