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230210042 = 21947157821
BaseRepresentation
bin11011011100010…
…11100111111010
3121001011212210212
431232023213322
5432413210132
634502111122
75463516206
oct1556134772
9531155725
10230210042
11108a47237
126511b4a2
1338903a7a
1422807b06
15153255b2
hexdb8b9fa

230210042 has 32 divisors (see below), whose sum is σ = 374042880. Its totient is φ = 105917760.

The previous prime is 230210021. The next prime is 230210051. The reversal of 230210042 is 240012032.

It is a junction number, because it is equal to n+sod(n) for n = 230209999 and 230210026.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279992 + ... + 280812.

It is an arithmetic number, because the mean of its divisors is an integer number (11688840).

Almost surely, 2230210042 is an apocalyptic number.

230210042 is a deficient number, since it is larger than the sum of its proper divisors (143832838).

230210042 is a wasteful number, since it uses less digits than its factorization.

230210042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 230210042 is about 15172.6741874991. The cubic root of 230210042 is about 612.8790197220.

Adding to 230210042 its reverse (240012032), we get a palindrome (470222074).

The spelling of 230210042 in words is "two hundred thirty million, two hundred ten thousand, forty-two".

Divisors: 1 2 19 38 47 94 157 314 821 893 1642 1786 2983 5966 7379 14758 15599 31198 38587 77174 128897 140201 257794 280402 733153 1466306 2449043 4898086 6058159 12116318 115105021 230210042