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148531950 = 23252761773
BaseRepresentation
bin10001101101001…
…10101011101110
3101100111012112100
420312212223232
5301011010300
622423315530
73452333520
oct1066465356
9340435470
10148531950
117692a286
12418abba6
1324a06938
1415a25a10
15d08e700
hex8da6aee

148531950 has 144 divisors (see below), whose sum is σ = 464139936. Its totient is φ = 33350400.

The previous prime is 148531921. The next prime is 148531963. The reversal of 148531950 is 59135841.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 191764 + ... + 192536.

It is an arithmetic number, because the mean of its divisors is an integer number (3223194).

Almost surely, 2148531950 is an apocalyptic number.

148531950 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 148531950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232069968).

148531950 is an abundant number, since it is smaller than the sum of its proper divisors (315607986).

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

148531950 is a wasteful number, since it uses less digits than its factorization.

148531950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 148531950 is about 12187.3684608286. The cubic root of 148531950 is about 529.5902255652.

The spelling of 148531950 in words is "one hundred forty-eight million, five hundred thirty-one thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 25 30 35 42 45 50 61 63 70 75 90 105 122 126 150 175 183 210 225 305 315 350 366 427 450 525 549 610 630 773 854 915 1050 1098 1281 1525 1546 1575 1830 2135 2319 2562 2745 3050 3150 3843 3865 4270 4575 4638 5411 5490 6405 6957 7686 7730 9150 10675 10822 11595 12810 13725 13914 16233 19215 19325 21350 23190 27055 27450 32025 32466 34785 38430 38650 47153 48699 54110 57975 64050 69570 81165 94306 96075 97398 115950 135275 141459 162330 173925 192150 235765 243495 270550 282918 330071 347850 405825 424377 471530 486990 660142 707295 811650 848754 990213 1178825 1217475 1414590 1650355 1980426 2121885 2357650 2434950 2970639 3300710 3536475 4243770 4951065 5941278 7072950 8251775 9902130 10609425 14853195 16503550 21218850 24755325 29706390 49510650 74265975 148531950