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30097426 = 215048713
BaseRepresentation
bin111001011010…
…0000000010010
32002122002220111
41302310000102
530201104201
62553031534
7513552412
oct162640022
962562814
1030097426
1115a97707
12a0b55aa
13630a438
143dd6642
152997b51
hex1cb4012

30097426 has 4 divisors (see below), whose sum is σ = 45146142. Its totient is φ = 15048712.

The previous prime is 30097421. The next prime is 30097427. The reversal of 30097426 is 62479003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62479003 = 544111483.

It can be written as a sum of positive squares in only one way, i.e., 29975625 + 121801 = 5475^2 + 349^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (30097421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7524355 + ... + 7524358.

Almost surely, 230097426 is an apocalyptic number.

30097426 is a deficient number, since it is larger than the sum of its proper divisors (15048716).

30097426 is a wasteful number, since it uses less digits than its factorization.

30097426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15048715.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 30097426 is about 5486.1121023909. The cubic root of 30097426 is about 311.0592485072.

The spelling of 30097426 in words is "thirty million, ninety-seven thousand, four hundred twenty-six".

Divisors: 1 2 15048713 30097426