Search a number
-
+
472147868444 = 22753318158941
BaseRepresentation
bin1101101111011100011…
…01001011101100011100
31200010200210111211110112
412313232031023230130
530213424323242234
61000522435225152
746053156443540
oct6675615135434
91603623454415
10472147868444
1117226718785a
12776094481b8
13356a5a63965
1418bd0165a20
15c435879ace
hex6dee34bb1c

472147868444 has 24 divisors (see below), whose sum is σ = 962112640608. Its totient is φ = 198531178560.

The previous prime is 472147868419. The next prime is 472147868461. The reversal of 472147868444 is 444868741274.

It is a super-2 number, since 2×4721478684442 (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159077987 + ... + 159080954.

It is an arithmetic number, because the mean of its divisors is an integer number (40088026692).

Almost surely, 2472147868444 is an apocalyptic number.

It is an amenable number.

472147868444 is an abundant number, since it is smaller than the sum of its proper divisors (489964772164).

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

472147868444 is a wasteful number, since it uses less digits than its factorization.

472147868444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318159005 (or 318159003 counting only the distinct ones).

The product of its digits is 38535168, while the sum is 59.

The spelling of 472147868444 in words is "four hundred seventy-two billion, one hundred forty-seven million, eight hundred sixty-eight thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 53 106 212 371 742 1484 318158941 636317882 1272635764 2227112587 4454225174 8908450348 16862423873 33724847746 67449695492 118036967111 236073934222 472147868444