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148439460 = 223513214639
BaseRepresentation
bin10001101100100…
…00000110100100
3101100022111122210
420312100012210
5301000030320
622421323420
73451500051
oct1066200644
9340274583
10148439460
1176876844
1241866570
13249a3800
1415a00028
15d0720e0
hex8d901a4

148439460 has 72 divisors (see below), whose sum is σ = 450092160. Its totient is φ = 36536448.

The previous prime is 148439387. The next prime is 148439471. The reversal of 148439460 is 64934841.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 2821 + ... + 17459.

It is an arithmetic number, because the mean of its divisors is an integer number (6251280).

Almost surely, 2148439460 is an apocalyptic number.

148439460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148439460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225046080).

148439460 is an abundant number, since it is smaller than the sum of its proper divisors (301652700).

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

148439460 is a wasteful number, since it uses less digits than its factorization.

148439460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14677 (or 14662 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 148439460 is about 12183.5733674485. The cubic root of 148439460 is about 529.4802784677.

The spelling of 148439460 in words is "one hundred forty-eight million, four hundred thirty-nine thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 169 195 260 338 390 507 676 780 845 1014 1690 2028 2535 3380 5070 10140 14639 29278 43917 58556 73195 87834 146390 175668 190307 219585 292780 380614 439170 570921 761228 878340 951535 1141842 1903070 2283684 2473991 2854605 3806140 4947982 5709210 7421973 9895964 11418420 12369955 14843946 24739910 29687892 37109865 49479820 74219730 148439460