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1630097 = 7232871
BaseRepresentation
bin110001101111110010001
310001211001222
412031332101
5404130342
654534425
716566320
oct6157621
93054058
101630097
11a13797
12667415
13450c71
143060b7
15222ed2
hex18df91

1630097 has 4 divisors (see below), whose sum is σ = 1862976. Its totient is φ = 1397220.

The previous prime is 1630093. The next prime is 1630117. The reversal of 1630097 is 7900361.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7900361 = 71128623.

It is a cyclic number.

It is not a de Polignac number, because 1630097 - 22 = 1630093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1630091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116429 + ... + 116442.

It is an arithmetic number, because the mean of its divisors is an integer number (465744).

21630097 is an apocalyptic number.

It is an amenable number.

1630097 is a deficient number, since it is larger than the sum of its proper divisors (232879).

1630097 is an equidigital number, since it uses as much as digits as its factorization.

1630097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232878.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 1630097 is about 1276.7525210471. The cubic root of 1630097 is about 117.6895266340.

The spelling of 1630097 in words is "one million, six hundred thirty thousand, ninety-seven".

Divisors: 1 7 232871 1630097