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30291234 = 2337136447
BaseRepresentation
bin111001110001…
…1010100100010
32002222221202120
41303203110202
530223304414
63001125110
7515320431
oct163432442
962887676
1030291234
111610a286
12a189796
13637770c
144047118
1529d52a9
hex1ce3522

30291234 has 16 divisors (see below), whose sum is σ = 62220288. Its totient is φ = 9824112.

The previous prime is 30291223. The next prime is 30291241. The reversal of 30291234 is 43219203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68002 + ... + 68445.

It is an arithmetic number, because the mean of its divisors is an integer number (3888768).

Almost surely, 230291234 is an apocalyptic number.

30291234 is an abundant number, since it is smaller than the sum of its proper divisors (31929054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30291234 is a wasteful number, since it uses less digits than its factorization.

30291234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136489.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30291234 is about 5503.7472689069. The cubic root of 30291234 is about 311.7254940891.

The spelling of 30291234 in words is "thirty million, two hundred ninety-one thousand, two hundred thirty-four".

Divisors: 1 2 3 6 37 74 111 222 136447 272894 409341 818682 5048539 10097078 15145617 30291234