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30796609 = 233147919
BaseRepresentation
bin111010101111…
…0101101000001
32010221122000011
41311132231001
530340442414
63020024521
7522524014
oct165365501
963848004
1030796609
1116424a48
12a392141
1364c375c
14413937b
152a84dc4
hex1d5eb41

30796609 has 16 divisors (see below), whose sum is σ = 33914880. Its totient is φ = 27870480.

The previous prime is 30796589. The next prime is 30796613. The reversal of 30796609 is 90669703.

It is a de Polignac number, because none of the positive numbers 2k-30796609 is a prime.

It is a super-2 number, since 2×307966092 = 1896862251797762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30796669) 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, 33052 + ... + 33970.

It is an arithmetic number, because the mean of its divisors is an integer number (2119680).

Almost surely, 230796609 is an apocalyptic number.

It is an amenable number.

30796609 is a deficient number, since it is larger than the sum of its proper divisors (3118271).

30796609 is a wasteful number, since it uses less digits than its factorization.

30796609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 30796609 is about 5549.4692539017. The cubic root of 30796609 is about 313.4495372771.

The spelling of 30796609 in words is "thirty million, seven hundred ninety-six thousand, six hundred nine".

Divisors: 1 23 31 47 713 919 1081 1457 21137 28489 33511 43193 655247 993439 1338983 30796609