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120626881 = 235244647
BaseRepresentation
bin1110011000010…
…01111011000001
322101222110222021
413030021323001
5221340030011
615545241441
72663211604
oct714117301
9271873867
10120626881
11620aa841
1234493281
131bcb636b
141204033b
15a8cb471
hex7309ec1

120626881 has 4 divisors (see below), whose sum is σ = 125871552. Its totient is φ = 115382212.

The previous prime is 120626873. The next prime is 120626899. The reversal of 120626881 is 188626021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120626881 - 23 = 120626873 is a prime.

It is a super-2 number, since 2×1206268812 = 29101688839576322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120626851) 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 3 ways as a sum of consecutive naturals, for example, 2622301 + ... + 2622346.

It is an arithmetic number, because the mean of its divisors is an integer number (31467888).

Almost surely, 2120626881 is an apocalyptic number.

It is an amenable number.

120626881 is a deficient number, since it is larger than the sum of its proper divisors (5244671).

120626881 is an equidigital number, since it uses as much as digits as its factorization.

120626881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5244670.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 120626881 is about 10983.0269507090. The cubic root of 120626881 is about 494.0998243852.

The spelling of 120626881 in words is "one hundred twenty million, six hundred twenty-six thousand, eight hundred eighty-one".

Divisors: 1 23 5244647 120626881