Search a number
-
+
154431400853051 = 7224113077432539
BaseRepresentation
bin100011000111010001011100…
…110010100011111000111011
3202020210111102211222110211222
4203013101130302203320323
5130220201002104244201
61304240450043342255
744346205035414200
oct4307213462437073
9666714384873758
10154431400853051
114522aa97843953
12153a1a0b82198b
136822a846548aa
142a1c73c01bca7
1512cc1ad8be91b
hex8c745cca3e3b

154431400853051 has 12 divisors (see below), whose sum is σ = 180390104456760. Its totient is φ = 131820519983040.

The previous prime is 154431400852999. The next prime is 154431400853057. The reversal of 154431400853051 is 150358004134451.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-154431400853051 is a prime.

It is a super-2 number, since 2×1544314008530512 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154431400852993 and 154431400853011.

It is not an unprimeable number, because it can be changed into a prime (154431400853057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6538704461 + ... + 6538728078.

It is an arithmetic number, because the mean of its divisors is an integer number (15032508704730).

Almost surely, 2154431400853051 is an apocalyptic number.

154431400853051 is a deficient number, since it is larger than the sum of its proper divisors (25958703603709).

154431400853051 is a wasteful number, since it uses less digits than its factorization.

154431400853051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13077432794 (or 13077432787 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 154431400853051 in words is "one hundred fifty-four trillion, four hundred thirty-one billion, four hundred million, eight hundred fifty-three thousand, fifty-one".

Divisors: 1 7 49 241 1687 11809 13077432539 91542027773 640794194411 3151661241899 22061628693293 154431400853051