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531992148 = 223193229703
BaseRepresentation
bin11111101101011…
…000111001010100
31101002001000000220
4133231120321110
52042142222043
6124442234340
716116600342
oct3755307124
91332030026
10531992148
11253328636
1212a1b59b0
13862a6a6c
1450922992
1531a87483
hex1fb58e54

531992148 has 24 divisors (see below), whose sum is σ = 1247752128. Its totient is φ = 176411136.

The previous prime is 531992129. The next prime is 531992159. The reversal of 531992148 is 841299135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112536 + ... + 117167.

It is an arithmetic number, because the mean of its divisors is an integer number (51989672).

Almost surely, 2531992148 is an apocalyptic number.

It is an amenable number.

531992148 is an abundant number, since it is smaller than the sum of its proper divisors (715759980).

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

531992148 is a wasteful number, since it uses less digits than its factorization.

531992148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229903 (or 229901 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 531992148 is about 23064.9549750265. The cubic root of 531992148 is about 810.2799154504.

The spelling of 531992148 in words is "five hundred thirty-one million, nine hundred ninety-two thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 193 386 579 772 1158 2316 229703 459406 689109 918812 1378218 2756436 44332679 88665358 132998037 177330716 265996074 531992148