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140454202248 = 23321950752809
BaseRepresentation
bin1000001011001110111…
…0010000101110001000
3111102112111100202002200
42002303232100232020
54300122233432443
6144305045000200
713101405010053
oct2026356205610
9442474322080
10140454202248
115462580aaa8
12232799b3060
1310324a00619
146b25aa1a9a
1539c0a3edd3
hex20b3b90b88

140454202248 has 24 divisors (see below), whose sum is σ = 380396797950. Its totient is φ = 46818067392.

The previous prime is 140454202247. The next prime is 140454202363. The reversal of 140454202248 is 842202454041.

140454202248 is a `hidden beast` number, since 1 + 4 + 0 + 4 + 5 + 420 + 224 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 116075127204 + 24379075044 = 340698^2 + 156138^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is not an unprimeable number, because it can be changed into a prime (140454202247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 975376333 + ... + 975376476.

Almost surely, 2140454202248 is an apocalyptic number.

140454202248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140454202248 is an abundant number, since it is smaller than the sum of its proper divisors (239942595702).

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

140454202248 is a wasteful number, since it uses less digits than its factorization.

140454202248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950752821 (or 1950752814 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 36.

Adding to 140454202248 its reverse (842202454041), we get a palindrome (982656656289).

The spelling of 140454202248 in words is "one hundred forty billion, four hundred fifty-four million, two hundred two thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1950752809 3901505618 5852258427 7803011236 11704516854 15606022472 17556775281 23409033708 35113550562 46818067416 70227101124 140454202248