Search a number
-
+
285296909080 = 2357132422727
BaseRepresentation
bin1000010011011010000…
…01010101101100011000
31000021101211110121202011
410021231001111230120
514133242002042310
6335021422515304
726416631500141
oct4115501255430
91007354417664
10285296909080
11aaaa2738497
1247361435b34
1320b9896a801
14db46528ac8
15764b99778a
hex426d055b18

285296909080 has 16 divisors (see below), whose sum is σ = 641918045520. Its totient is φ = 114118763616.

The previous prime is 285296909063. The next prime is 285296909083. The reversal of 285296909080 is 80909692582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285296909083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3566211324 + ... + 3566211403.

It is an arithmetic number, because the mean of its divisors is an integer number (40119877845).

Almost surely, 2285296909080 is an apocalyptic number.

285296909080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285296909080 is an abundant number, since it is smaller than the sum of its proper divisors (356621136440).

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

285296909080 is a wasteful number, since it uses less digits than its factorization.

285296909080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132422738 (or 7132422734 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 58.

The spelling of 285296909080 in words is "two hundred eighty-five billion, two hundred ninety-six million, nine hundred nine thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 7132422727 14264845454 28529690908 35662113635 57059381816 71324227270 142648454540 285296909080