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30859242 = 2359179487
BaseRepresentation
bin111010110110…
…1111111101010
32011001210220220
41311231333222
530344443432
63021230510
7523204431
oct165557752
964053826
1030859242
1116468007
12a402436
13651610b
144154118
152a9872c
hex1d6dfea

30859242 has 32 divisors (see below), whose sum is σ = 63244800. Its totient is φ = 10034928.

The previous prime is 30859223. The next prime is 30859243. The reversal of 30859242 is 24295803.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30859243) 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, 63123 + ... + 63609.

It is an arithmetic number, because the mean of its divisors is an integer number (1976400).

Almost surely, 230859242 is an apocalyptic number.

30859242 is an abundant number, since it is smaller than the sum of its proper divisors (32385558).

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

30859242 is a wasteful number, since it uses less digits than its factorization.

30859242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 30859242 is about 5555.1095398741. The cubic root of 30859242 is about 313.6618873960.

The spelling of 30859242 in words is "thirty million, eight hundred fifty-nine thousand, two hundred forty-two".

Divisors: 1 2 3 6 59 118 177 179 354 358 487 537 974 1074 1461 2922 10561 21122 28733 31683 57466 63366 86199 87173 172398 174346 261519 523038 5143207 10286414 15429621 30859242