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245272230 = 232572316927
BaseRepresentation
bin11101001111010…
…00111010100110
3122002112010020200
432213220322212
51000242202410
640201011330
76035531250
oct1647507246
9562463220
10245272230
111164a4725
126a183b46
133ba787c8
1424808cd0
15167ed3c0
hexe9e8ea6

245272230 has 96 divisors (see below), whose sum is σ = 760541184. Its totient is φ = 53621568.

The previous prime is 245272229. The next prime is 245272231. The reversal of 245272230 is 32272542.

It is an interprime number because it is at equal distance from previous prime (245272229) and next prime (245272231).

It is a junction number, because it is equal to n+sod(n) for n = 245272194 and 245272203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245272231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6027 + ... + 22953.

It is an arithmetic number, because the mean of its divisors is an integer number (7922304).

Almost surely, 2245272230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245272230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380270592).

245272230 is an abundant number, since it is smaller than the sum of its proper divisors (515268954).

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

245272230 is a wasteful number, since it uses less digits than its factorization.

245272230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16970 (or 16967 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 245272230 is about 15661.1694965606. The cubic root of 245272230 is about 625.9641481711.

The spelling of 245272230 in words is "two hundred forty-five million, two hundred seventy-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 23 30 35 42 45 46 63 69 70 90 105 115 126 138 161 207 210 230 315 322 345 414 483 630 690 805 966 1035 1449 1610 2070 2415 2898 4830 7245 14490 16927 33854 50781 84635 101562 118489 152343 169270 236978 253905 304686 355467 389321 507810 592445 710934 761715 778642 1066401 1167963 1184890 1523430 1777335 1946605 2132802 2335926 2725247 3503889 3554670 3893210 5332005 5450494 5839815 7007778 8175741 10664010 11679630 13626235 16351482 17519445 24527223 27252470 35038890 40878705 49054446 81757410 122636115 245272230