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148509244 = 221319831811
BaseRepresentation
bin10001101101000…
…01001000111100
3101100110001101101
420312201020330
5301004243434
622423022444
73452210362
oct1066411074
9340401341
10148509244
1176914214
124189aa24
13249c94c0
1415a1b632
15d087b14
hex8da123c

148509244 has 48 divisors (see below), whose sum is σ = 298327680. Its totient is φ = 64117440.

The previous prime is 148509223. The next prime is 148509271. The reversal of 148509244 is 442905841.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81099 + ... + 82909.

It is an arithmetic number, because the mean of its divisors is an integer number (6215160).

Almost surely, 2148509244 is an apocalyptic number.

It is an amenable number.

148509244 is an abundant number, since it is smaller than the sum of its proper divisors (149818436).

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

148509244 is a wasteful number, since it uses less digits than its factorization.

148509244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 148509244 is about 12186.4368869658. The cubic root of 148509244 is about 529.5632381315.

The spelling of 148509244 in words is "one hundred forty-eight million, five hundred nine thousand, two hundred forty-four".

Divisors: 1 2 4 13 19 26 38 52 76 83 166 247 332 494 988 1079 1577 1811 2158 3154 3622 4316 6308 7244 20501 23543 34409 41002 47086 68818 82004 94172 137636 150313 300626 447317 601252 894634 1789268 1954069 2855947 3908138 5711894 7816276 11423788 37127311 74254622 148509244