Search a number
-
+
87068738 = 2409106441
BaseRepresentation
bin1010011000010…
…01000001000010
320001211112212002
411030021001002
5134242144423
612350104002
72105033501
oct514110102
9201745762
1087068738
114516a039
12251ab002
1315066983
14b7c6838
15799d228
hex5309042

87068738 has 8 divisors (see below), whose sum is σ = 130923660. Its totient is φ = 43427520.

The previous prime is 87068717. The next prime is 87068749. The reversal of 87068738 is 83786078.

It can be written as a sum of positive squares in 2 ways, for example, as 86062729 + 1006009 = 9277^2 + 1003^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 87068692 and 87068701.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52403 + ... + 54038.

Almost surely, 287068738 is an apocalyptic number.

87068738 is a deficient number, since it is larger than the sum of its proper divisors (43854922).

87068738 is a wasteful number, since it uses less digits than its factorization.

87068738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106852.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 87068738 is about 9331.0630691256. The cubic root of 87068738 is about 443.2214292846.

The spelling of 87068738 in words is "eighty-seven million, sixty-eight thousand, seven hundred thirty-eight".

Divisors: 1 2 409 818 106441 212882 43534369 87068738