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30551434 = 223576481
BaseRepresentation
bin111010010001…
…0110110001010
32010111011200121
41310202312022
530310121214
63010453454
7520453144
oct164426612
963434617
1030551434
1116277821
12a29428a
136438c94
1440b3c94
152a37424
hex1d22d8a

30551434 has 8 divisors (see below), whose sum is σ = 45853668. Its totient is φ = 15266880.

The previous prime is 30551419. The next prime is 30551453. The reversal of 30551434 is 43415503.

It can be written as a sum of positive squares in 2 ways, for example, as 30195025 + 356409 = 5495^2 + 597^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30551399 and 30551408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1474 + ... + 7954.

Almost surely, 230551434 is an apocalyptic number.

30551434 is a deficient number, since it is larger than the sum of its proper divisors (15302234).

30551434 is a wasteful number, since it uses less digits than its factorization.

30551434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8840.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 30551434 is about 5527.3351626258. The cubic root of 30551434 is about 312.6155186788.

Adding to 30551434 its reverse (43415503), we get a palindrome (73966937).

It can be divided in two parts, 3055 and 1434, that added together give a square (4489 = 672).

The spelling of 30551434 in words is "thirty million, five hundred fifty-one thousand, four hundred thirty-four".

Divisors: 1 2 2357 4714 6481 12962 15275717 30551434