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2290971 = 317291549
BaseRepresentation
bin1000101111010100011011
311022101121210
420233110123
51041302341
6121034203
725321134
oct10572433
94271553
102290971
111325271
12925963
13622a07
14438c8b
15303c16
hex22f51b

2290971 has 16 divisors (see below), whose sum is σ = 3348000. Its totient is φ = 1387008.

The previous prime is 2290969. The next prime is 2290973. The reversal of 2290971 is 1790922.

It is an interprime number because it is at equal distance from previous prime (2290969) and next prime (2290973).

It is not a de Polignac number, because 2290971 - 21 = 2290969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2290973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705 + ... + 2253.

It is an arithmetic number, because the mean of its divisors is an integer number (209250).

22290971 is an apocalyptic number.

2290971 is a deficient number, since it is larger than the sum of its proper divisors (1057029).

2290971 is a wasteful number, since it uses less digits than its factorization.

2290971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 2290971 is about 1513.5953884708. The cubic root of 2290971 is about 131.8276561633.

The spelling of 2290971 in words is "two million, two hundred ninety thousand, nine hundred seventy-one".

Divisors: 1 3 17 29 51 87 493 1479 1549 4647 26333 44921 78999 134763 763657 2290971