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140230310 = 251123431289
BaseRepresentation
bin10000101101110…
…11111010100110
3100202212102211012
420112323322212
5241344332220
621525342222
73321636503
oct1026737246
9322772735
10140230310
117217a120
123ab67972
132308b11c
14148a44aa
15c49eac5
hex85bbea6

140230310 has 64 divisors (see below), whose sum is σ = 294243840. Its totient is φ = 47604480.

The previous prime is 140230301. The next prime is 140230327. The reversal of 140230310 is 13032041.

It is a super-2 number, since 2×1402303102 = 39329079685392200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108146 + ... + 109434.

It is an arithmetic number, because the mean of its divisors is an integer number (4597560).

Almost surely, 2140230310 is an apocalyptic number.

140230310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140230310 is an abundant number, since it is smaller than the sum of its proper divisors (154013530).

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

140230310 is a wasteful number, since it uses less digits than its factorization.

140230310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 140230310 is about 11841.8879406959. The cubic root of 140230310 is about 519.5339883147.

Adding to 140230310 its reverse (13032041), we get a palindrome (153262351).

The spelling of 140230310 in words is "one hundred forty million, two hundred thirty thousand, three hundred ten".

Divisors: 1 2 5 10 11 22 23 43 46 55 86 110 115 215 230 253 430 473 506 946 989 1265 1289 1978 2365 2530 2578 4730 4945 6445 9890 10879 12890 14179 21758 28358 29647 54395 55427 59294 70895 108790 110854 141790 148235 277135 296470 326117 554270 609697 652234 1219394 1274821 1630585 2549642 3048485 3261170 6096970 6374105 12748210 14023031 28046062 70115155 140230310