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245142406 = 2421291143
BaseRepresentation
bin11101001110010…
…01001110000110
3122002021112011101
432213021032012
51000224024111
640154130314
76034450615
oct1647111606
9562245141
10245142406
11116416133
126a12099a
133ba316a2
14247b387c
15167c4bc1
hexe9c9386

245142406 has 8 divisors (see below), whose sum is σ = 368588304. Its totient is φ = 122279640.

The previous prime is 245142379. The next prime is 245142407. The reversal of 245142406 is 604241542.

245142406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245142407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144730 + ... + 146413.

It is an arithmetic number, because the mean of its divisors is an integer number (46073538).

Almost surely, 2245142406 is an apocalyptic number.

245142406 is a deficient number, since it is larger than the sum of its proper divisors (123445898).

245142406 is a wasteful number, since it uses less digits than its factorization.

245142406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291566.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 245142406 is about 15657.0241744720. The cubic root of 245142406 is about 625.8536865400.

Adding to 245142406 its reverse (604241542), we get a palindrome (849383948).

The spelling of 245142406 in words is "two hundred forty-five million, one hundred forty-two thousand, four hundred six".

Divisors: 1 2 421 842 291143 582286 122571203 245142406