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245081193 = 3723534723
BaseRepresentation
bin11101001101110…
…10010001101001
3122002011102012020
432212322101221
51000220044233
640152535053
76034104300
oct1646722151
9562142166
10245081193
11116384145
126a0b1489
133ba0c876
1424799437
15167b19b3
hexe9ba469

245081193 has 24 divisors (see below), whose sum is σ = 381283488. Its totient is φ = 139620096.

The previous prime is 245081183. The next prime is 245081227. The reversal of 245081193 is 391180542.

It is not a de Polignac number, because 245081193 - 28 = 245080937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245081143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49530 + ... + 54252.

It is an arithmetic number, because the mean of its divisors is an integer number (15886812).

Almost surely, 2245081193 is an apocalyptic number.

It is an amenable number.

245081193 is a deficient number, since it is larger than the sum of its proper divisors (136202295).

245081193 is a wasteful number, since it uses less digits than its factorization.

245081193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093 (or 5086 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 245081193 is about 15655.0692429002. The cubic root of 245081193 is about 625.8015895140.

The spelling of 245081193 in words is "two hundred forty-five million, eighty-one thousand, one hundred ninety-three".

Divisors: 1 3 7 21 49 147 353 1059 2471 4723 7413 14169 17297 33061 51891 99183 231427 694281 1667219 5001657 11670533 35011599 81693731 245081193