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148630244 = 22731171233
BaseRepresentation
bin10001101101111…
…10101011100100
3101100200012100212
420312332223210
5301022131434
622425354552
73453223220
oct1066765344
9340605325
10148630244
1176997114
1241938a58
1324a3c5b9
1415a4d780
15d0ad8ce
hex8dbeae4

148630244 has 24 divisors (see below), whose sum is σ = 306851328. Its totient is φ = 61643520.

The previous prime is 148630199. The next prime is 148630247. The reversal of 148630244 is 442036841.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 148630244.

It is not an unprimeable number, because it can be changed into a prime (148630247) 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, 84749 + ... + 86484.

It is an arithmetic number, because the mean of its divisors is an integer number (12785472).

Almost surely, 2148630244 is an apocalyptic number.

148630244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

148630244 is an abundant number, since it is smaller than the sum of its proper divisors (158221084).

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

148630244 is a wasteful number, since it uses less digits than its factorization.

148630244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171275 (or 171273 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 148630244 is about 12191.4004117657. The cubic root of 148630244 is about 529.7070221263.

The spelling of 148630244 in words is "one hundred forty-eight million, six hundred thirty thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 171233 342466 684932 1198631 2397262 4794524 5308223 10616446 21232892 37157561 74315122 148630244