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140280468 = 223371392273
BaseRepresentation
bin10000101110010…
…00001010010100
3100202221222121220
420113020022110
5241402433333
621530410340
73322235646
oct1027101224
9322858556
10140280468
1172203879
123ab909b0
13230a7bc3
14148b8896
15c4ae8b3
hex85c8294

140280468 has 48 divisors (see below), whose sum is σ = 338735040. Its totient is φ = 45149184.

The previous prime is 140280467. The next prime is 140280499. The reversal of 140280468 is 864082041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140280463) 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, 60580 + ... + 62852.

It is an arithmetic number, because the mean of its divisors is an integer number (7056980).

Almost surely, 2140280468 is an apocalyptic number.

It is an amenable number.

140280468 is an abundant number, since it is smaller than the sum of its proper divisors (198454572).

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

140280468 is a wasteful number, since it uses less digits than its factorization.

140280468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456 (or 2454 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 140280468 is about 11844.0055724404. The cubic root of 140280468 is about 519.5959237585.

The spelling of 140280468 in words is "one hundred forty million, two hundred eighty thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 37 74 111 139 148 222 278 417 444 556 834 1668 2273 4546 5143 6819 9092 10286 13638 15429 20572 27276 30858 61716 84101 168202 252303 315947 336404 504606 631894 947841 1009212 1263788 1895682 3791364 11690039 23380078 35070117 46760156 70140234 140280468