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140254488 = 233211217947
BaseRepresentation
bin10000101110000…
…01110100011000
3100202220122222200
420113001310120
5241401120423
621530050200
73322100133
oct1027016430
9322818880
10140254488
1172196300
123ab79960
132309912a
14148ad21a
15c4a6d43
hex85c1d18

140254488 has 144 divisors (see below), whose sum is σ = 442554840. Its totient is φ = 39959040.

The previous prime is 140254463. The next prime is 140254501. The reversal of 140254488 is 884452041.

It is a super-3 number, since 3×1402544883 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 147631 + ... + 148577.

Almost surely, 2140254488 is an apocalyptic number.

140254488 is a gapful number since it is divisible by the number (18) 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 140254488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221277420).

140254488 is an abundant number, since it is smaller than the sum of its proper divisors (302300352).

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

140254488 is a wasteful number, since it uses less digits than its factorization.

140254488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The square root of 140254488 is about 11842.9087643197. The cubic root of 140254488 is about 519.5638453190.

The spelling of 140254488 in words is "one hundred forty million, two hundred fifty-four thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 17 18 22 24 33 34 36 44 51 66 68 72 88 99 102 121 132 136 153 187 198 204 242 264 306 363 374 396 408 484 561 612 726 748 792 947 968 1089 1122 1224 1452 1496 1683 1894 2057 2178 2244 2841 2904 3366 3788 4114 4356 4488 5682 6171 6732 7576 8228 8523 8712 10417 11364 12342 13464 16099 16456 17046 18513 20834 22728 24684 31251 32198 34092 37026 41668 48297 49368 62502 64396 68184 74052 83336 93753 96594 114587 125004 128792 144891 148104 177089 187506 193188 229174 250008 289782 343761 354178 375012 386376 458348 531267 579564 687522 708356 750024 916696 1031283 1062534 1159128 1375044 1416712 1593801 1947979 2062566 2125068 2750088 3187602 3895958 4125132 4250136 5843937 6375204 7791916 8250264 11687874 12750408 15583832 17531811 23375748 35063622 46751496 70127244 140254488