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148866520 = 235111917807
BaseRepresentation
bin10001101111110…
…00010111011000
3101101010012110211
420313320113120
5301102212040
622434420504
73455226115
oct1067702730
9341105424
10148866520
1177038690
1241a31734
1324ac2cca
1415ab190c
15d1088ea
hex8df85d8

148866520 has 64 divisors (see below), whose sum is σ = 384652800. Its totient is φ = 51281280.

The previous prime is 148866493. The next prime is 148866551. The reversal of 148866520 is 25668841.

It is a super-2 number, since 2×1488665202 = 44322481553820800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 544 + ... + 17263.

It is an arithmetic number, because the mean of its divisors is an integer number (6010200).

Almost surely, 2148866520 is an apocalyptic number.

148866520 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 148866520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192326400).

148866520 is an abundant number, since it is smaller than the sum of its proper divisors (235786280).

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

148866520 is a wasteful number, since it uses less digits than its factorization.

148866520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17848 (or 17844 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 148866520 is about 12201.0868368355. The cubic root of 148866520 is about 529.9875634913.

It can be divided in two parts, 148 and 866520, that added together give a palindrome (866668).

The spelling of 148866520 in words is "one hundred forty-eight million, eight hundred sixty-six thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 11 19 20 22 38 40 44 55 76 88 95 110 152 190 209 220 380 418 440 760 836 1045 1672 2090 4180 8360 17807 35614 71228 89035 142456 178070 195877 338333 356140 391754 676666 712280 783508 979385 1353332 1567016 1691665 1958770 2706664 3383330 3721663 3917540 6766660 7443326 7835080 13533320 14886652 18608315 29773304 37216630 74433260 148866520