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3142230 = 2357131151
BaseRepresentation
bin1011111111001001010110
312220122022220
423333021112
51301022410
6151203210
735465010
oct13771126
95818286
103142230
111856893
121076506
13860310
145bb1b0
15421070
hex2ff256

3142230 has 64 divisors (see below), whose sum is σ = 9289728. Its totient is φ = 662400.

The previous prime is 3142219. The next prime is 3142231. The reversal of 3142230 is 322413.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142231) 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, 2155 + ... + 3305.

It is an arithmetic number, because the mean of its divisors is an integer number (145152).

Almost surely, 23142230 is an apocalyptic number.

3142230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3142230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4644864).

3142230 is an abundant number, since it is smaller than the sum of its proper divisors (6147498).

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

3142230 is a wasteful number, since it uses less digits than its factorization.

3142230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 3142230 is about 1772.6336338905. The cubic root of 3142230 is about 146.4690923238.

Adding to 3142230 its reverse (322413), we get a palindrome (3464643).

The spelling of 3142230 in words is "three million, one hundred forty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1151 1365 2302 2730 3453 5755 6906 8057 11510 14963 16114 17265 24171 29926 34530 40285 44889 48342 74815 80570 89778 104741 120855 149630 209482 224445 241710 314223 448890 523705 628446 1047410 1571115 3142230