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148381380 = 223257117763
BaseRepresentation
bin10001101100000…
…01111011000100
3101100012112222200
420312001323010
5300441201010
622420154500
73451135530
oct1066017304
9340175880
10148381380
1176837144
1241838a30
1324983244
14159c6bc0
15d05ecc0
hex8d81ec4

148381380 has 72 divisors (see below), whose sum is σ = 514393152. Its totient is φ = 33915456.

The previous prime is 148381379. The next prime is 148381391. The reversal of 148381380 is 83183841.

148381380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57622 + ... + 60141.

Almost surely, 2148381380 is an apocalyptic number.

148381380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148381380 is an abundant number, since it is smaller than the sum of its proper divisors (366011772).

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

148381380 is a wasteful number, since it uses less digits than its factorization.

148381380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117785 (or 117780 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 148381380 is about 12181.1895970796. The cubic root of 148381380 is about 529.4112127663.

The spelling of 148381380 in words is "one hundred forty-eight million, three hundred eighty-one thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 420 630 1260 117763 235526 353289 471052 588815 706578 824341 1059867 1177630 1413156 1648682 1766445 2119734 2355260 2473023 3297364 3532890 4121705 4239468 4946046 5299335 7065780 7419069 8243410 9892092 10598670 12365115 14838138 16486820 21197340 24730230 29676276 37095345 49460460 74190690 148381380