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30098769 = 310032923
BaseRepresentation
bin111001011010…
…0010101010001
32002122011202020
41302310111101
530201130034
62553042053
7513556341
oct162642521
962564666
1030098769
1115a98718
12a0b6329
13630ac2c
143dd6d21
152998249
hex1cb4551

30098769 has 4 divisors (see below), whose sum is σ = 40131696. Its totient is φ = 20065844.

The previous prime is 30098741. The next prime is 30098773. The reversal of 30098769 is 96789003.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30098769 is a prime.

It is a super-2 number, since 2×300987692 = 1811871790630722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30098769.

It is not an unprimeable number, because it can be changed into a prime (30098669) 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, 5016459 + ... + 5016464.

It is an arithmetic number, because the mean of its divisors is an integer number (10032924).

Almost surely, 230098769 is an apocalyptic number.

It is an amenable number.

30098769 is a deficient number, since it is larger than the sum of its proper divisors (10032927).

30098769 is a wasteful number, since it uses less digits than its factorization.

30098769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10032926.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 30098769 is about 5486.2345010034. The cubic root of 30098769 is about 311.0638751084.

The spelling of 30098769 in words is "thirty million, ninety-eight thousand, seven hundred sixty-nine".

Divisors: 1 3 10032923 30098769