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505000148 = 224717315527
BaseRepresentation
bin11110000110011…
…011000011010100
31022012020122222012
4132012123003110
52013240001043
6122035523352
715341300432
oct3606330324
91265218865
10505000148
1123a0720a4
12121159558
1380815c73
144b0d7d52
152e504a18
hex1e19b0d4

505000148 has 24 divisors (see below), whose sum is σ = 907828992. Its totient is φ = 245683424.

The previous prime is 505000141. The next prime is 505000159. The reversal of 505000148 is 841000505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505000141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24761 + ... + 40287.

It is an arithmetic number, because the mean of its divisors is an integer number (37826208).

Almost surely, 2505000148 is an apocalyptic number.

It is an amenable number.

505000148 is a deficient number, since it is larger than the sum of its proper divisors (402828844).

505000148 is a wasteful number, since it uses less digits than its factorization.

505000148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15751 (or 15749 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 505000148 is about 22472.2083472008. The cubic root of 505000148 is about 796.3375019729.

The spelling of 505000148 in words is "five hundred five million, one hundred forty-eight", and thus it is an aban number.

Divisors: 1 2 4 47 94 173 188 346 692 8131 15527 16262 31054 32524 62108 729769 1459538 2686171 2919076 5372342 10744684 126250037 252500074 505000148