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245144052 = 223210962473
BaseRepresentation
bin11101001110010…
…01100111110100
3122002021121102100
432213021213310
51000224102202
640154142100
76034455456
oct1647114764
9562247370
10245144052
1111641739a
126a121930
133ba3236a
14247b42d6
15167c541c
hexe9c99f4

245144052 has 36 divisors (see below), whose sum is σ = 625364740. Its totient is φ = 80963712.

The previous prime is 245144041. The next prime is 245144059. The reversal of 245144052 is 250441542.

245144052 is a `hidden beast` number, since 245 + 14 + 405 + 2 = 666.

245144052 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 149964516 + 95179536 = 12246^2 + 9756^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245144059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27313 + ... + 35160.

Almost surely, 2245144052 is an apocalyptic number.

It is an amenable number.

245144052 is an abundant number, since it is smaller than the sum of its proper divisors (380220688).

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

245144052 is a wasteful number, since it uses less digits than its factorization.

245144052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62592 (or 62587 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 245144052 is about 15657.0767386508. The cubic root of 245144052 is about 625.8550872943.

Adding to 245144052 its reverse (250441542), we get a palindrome (495585594).

The spelling of 245144052 in words is "two hundred forty-five million, one hundred forty-four thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 109 218 327 436 654 981 1308 1962 3924 62473 124946 187419 249892 374838 562257 749676 1124514 2249028 6809557 13619114 20428671 27238228 40857342 61286013 81714684 122572026 245144052