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148217628 = 223131755889
BaseRepresentation
bin10001101010110…
…01111100011100
3101022220020100210
420311121330130
5300420431003
622412452420
73446554236
oct1065317434
9338806323
10148217628
1176735109
124177a110
1324926850
1415983256
15d02b503
hex8d59f1c

148217628 has 48 divisors (see below), whose sum is σ = 394359840. Its totient is φ = 42921984.

The previous prime is 148217623. The next prime is 148217633. The reversal of 148217628 is 826712841.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (148217623) and next prime (148217633).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148217621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25293 + ... + 30596.

It is an arithmetic number, because the mean of its divisors is an integer number (8215830).

Almost surely, 2148217628 is an apocalyptic number.

It is an amenable number.

148217628 is an abundant number, since it is smaller than the sum of its proper divisors (246142212).

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

148217628 is a wasteful number, since it uses less digits than its factorization.

148217628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55926 (or 55924 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 148217628 is about 12174.4662305992. The cubic root of 148217628 is about 529.2163903537.

It can be divided in two parts, 1482 and 17628, that added together give a triangular number (19110 = T195).

The spelling of 148217628 in words is "one hundred forty-eight million, two hundred seventeen thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 12 13 17 26 34 39 51 52 68 78 102 156 204 221 442 663 884 1326 2652 55889 111778 167667 223556 335334 670668 726557 950113 1453114 1900226 2179671 2850339 2906228 3800452 4359342 5700678 8718684 11401356 12351469 24702938 37054407 49405876 74108814 148217628