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148383990 = 232517293331
BaseRepresentation
bin10001101100000…
…10100011110110
3101100012200120100
420312002203312
5300441241430
622420214530
73451146246
oct1066024366
9340180510
10148383990
11768390a7
124183a446
13249844a1
14159c7b26
15d060960
hex8d828f6

148383990 has 96 divisors (see below), whose sum is σ = 411124896. Its totient is φ = 37002240.

The previous prime is 148383959. The next prime is 148384001. The reversal of 148383990 is 99383841.

148383990 is a `hidden beast` number, since 1 + 483 + 83 + 9 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 448125 + ... + 448455.

It is an arithmetic number, because the mean of its divisors is an integer number (4282551).

Almost surely, 2148383990 is an apocalyptic number.

148383990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 148383990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205562448).

148383990 is an abundant number, since it is smaller than the sum of its proper divisors (262740906).

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

148383990 is a wasteful number, since it uses less digits than its factorization.

148383990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 148383990 is about 12181.2967290022. The cubic root of 148383990 is about 529.4143168287.

The spelling of 148383990 in words is "one hundred forty-eight million, three hundred eighty-three thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 293 306 331 510 586 662 765 879 993 1465 1530 1655 1758 1986 2637 2930 2979 3310 4395 4965 4981 5274 5627 5958 8790 9930 9962 11254 13185 14895 14943 16881 24905 26370 28135 29790 29886 33762 44829 49810 50643 56270 74715 84405 89658 96983 101286 149430 168810 193966 224145 253215 290949 448290 484915 506430 581898 872847 969830 1454745 1648711 1745694 2909490 3297422 4364235 4946133 8243555 8728470 9892266 14838399 16487110 24730665 29676798 49461330 74191995 148383990