Search a number
-
+
47451678680480 = 255296572991753
BaseRepresentation
bin10101100101000001101000…
…11100111010010110100000
320020000100002002000100000112
422302200310130322112200
522204422014220233410
6244531000015310452
712665161555540004
oct1262406434722640
9206010062010015
1047451678680480
11141351646092a8
1253a455321b428
13206289bcc47a9
14ba096013a704
155744d8c4b105
hex2b283473a5a0

47451678680480 has 24 divisors (see below), whose sum is σ = 112104590883012. Its totient is φ = 18980671472128.

The previous prime is 47451678680431. The next prime is 47451678680501. The reversal of 47451678680480 is 8408687615474.

It can be written as a sum of positive squares in 2 ways, for example, as 40286998617616 + 7164680062864 = 6347204^2 + 2676692^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47451678680480.

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, 148286495717 + ... + 148286496036.

Almost surely, 247451678680480 is an apocalyptic number.

47451678680480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47451678680480 is an abundant number, since it is smaller than the sum of its proper divisors (64652912202532).

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

47451678680480 is a wasteful number, since it uses less digits than its factorization.

47451678680480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296572991768 (or 296572991760 counting only the distinct ones).

The product of its (nonzero) digits is 289013760, while the sum is 68.

The spelling of 47451678680480 in words is "forty-seven trillion, four hundred fifty-one billion, six hundred seventy-eight million, six hundred eighty thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 296572991753 593145983506 1186291967012 1482864958765 2372583934024 2965729917530 4745167868048 5931459835060 9490335736096 11862919670120 23725839340240 47451678680480