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30634045 = 5132331661
BaseRepresentation
bin111010011011…
…1000000111101
32010122101000021
41310313000331
530320242140
63012332141
7521246041
oct164670075
963571007
1030634045
11163238a2
12a314051
136467770
1440d6021
152a51b4a
hex1d3703d

30634045 has 32 divisors (see below), whose sum is σ = 42706944. Its totient is φ = 20908800.

The previous prime is 30634027. The next prime is 30634049. The reversal of 30634045 is 54043603.

It is not a de Polignac number, because 30634045 - 25 = 30634013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30634049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46015 + ... + 46675.

It is an arithmetic number, because the mean of its divisors is an integer number (1334592).

Almost surely, 230634045 is an apocalyptic number.

It is an amenable number.

30634045 is a deficient number, since it is larger than the sum of its proper divisors (12072899).

30634045 is a wasteful number, since it uses less digits than its factorization.

30634045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 30634045 is about 5534.8030678607. The cubic root of 30634045 is about 312.8970356137.

Adding to 30634045 its reverse (54043603), we get a palindrome (84677648).

The spelling of 30634045 in words is "thirty million, six hundred thirty-four thousand, forty-five".

Divisors: 1 5 13 23 31 65 115 155 299 403 661 713 1495 2015 3305 3565 8593 9269 15203 20491 42965 46345 76015 102455 197639 266383 471293 988195 1331915 2356465 6126809 30634045