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2270139 = 31939827
BaseRepresentation
bin1000101010001110111011
311021100001020
420222032323
51040121024
6120353523
725203324
oct10521673
94240036
102270139
111310653
129158a3
136163a1
1443144b
152ec979
hex22a3bb

2270139 has 8 divisors (see below), whose sum is σ = 3186240. Its totient is φ = 1433736.

The previous prime is 2270137. The next prime is 2270141. The reversal of 2270139 is 9310722.

It is an interprime number because it is at equal distance from previous prime (2270137) and next prime (2270141).

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

It is not a de Polignac number, because 2270139 - 21 = 2270137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2270131) 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, 19857 + ... + 19970.

It is an arithmetic number, because the mean of its divisors is an integer number (398280).

22270139 is an apocalyptic number.

2270139 is a deficient number, since it is larger than the sum of its proper divisors (916101).

2270139 is a wasteful number, since it uses less digits than its factorization.

2270139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39849.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 2270139 is about 1506.6980453960. The cubic root of 2270139 is about 131.4268654135.

The spelling of 2270139 in words is "two million, two hundred seventy thousand, one hundred thirty-nine".

Divisors: 1 3 19 57 39827 119481 756713 2270139