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240253878 = 2340042313
BaseRepresentation
bin11100101000111…
…11101110110110
3121202002011100210
432110133232312
5443001111003
635501250250
75645060424
oct1624375666
9552064323
10240253878
11113687327
1268563986
133aa0c577
1423ca0114
151615b503
hexe51fbb6

240253878 has 8 divisors (see below), whose sum is σ = 480507768. Its totient is φ = 80084624.

The previous prime is 240253861. The next prime is 240253903. The reversal of 240253878 is 878352042.

It is a sphenic number, since it is the product of 3 distinct primes.

240253878 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20021151 + ... + 20021162.

It is an arithmetic number, because the mean of its divisors is an integer number (60063471).

Almost surely, 2240253878 is an apocalyptic number.

240253878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

240253878 is a wasteful number, since it uses less digits than its factorization.

240253878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40042318.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 240253878 is about 15500.1250962694. The cubic root of 240253878 is about 621.6655511851.

It can be divided in two parts, 2402 and 53878, that added together give a triangular number (56280 = T335).

The spelling of 240253878 in words is "two hundred forty million, two hundred fifty-three thousand, eight hundred seventy-eight".

Divisors: 1 2 3 6 40042313 80084626 120126939 240253878