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981288106 = 21273863339
BaseRepresentation
bin111010011111010…
…100010010101010
32112101110121012221
4322133110102222
54002202204411
6241212224254
733213545161
oct7237242252
92471417187
10981288106
11463a03307
1223476b08a
131283b8166
149447a3d8
155b237071
hex3a7d44aa

981288106 has 8 divisors (see below), whose sum is σ = 1483522560. Its totient is φ = 486780588.

The previous prime is 981288083. The next prime is 981288149. The reversal of 981288106 is 601882189.

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

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, 1931416 + ... + 1931923.

It is an arithmetic number, because the mean of its divisors is an integer number (185440320).

Almost surely, 2981288106 is an apocalyptic number.

981288106 is a deficient number, since it is larger than the sum of its proper divisors (502234454).

981288106 is a wasteful number, since it uses less digits than its factorization.

981288106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863468.

The product of its (nonzero) digits is 55296, while the sum is 43.

The square root of 981288106 is about 31325.5184474256. The cubic root of 981288106 is about 993.7233885731.

The spelling of 981288106 in words is "nine hundred eighty-one million, two hundred eighty-eight thousand, one hundred six".

Divisors: 1 2 127 254 3863339 7726678 490644053 981288106